Derwent Patent Monitor vs Questel: how they compare in 2026
Derwent Patent Monitor and Questel both help IP teams review patents that may block a product, though at very different scale. Derwent Patent Monitor is Clarivate's review platform, launched in November 2025. Questel sells a full IP suite of search, management and filing services with AI assistants throughout. Derwent Patent Monitor puts its AI at the center. Its Threat Analysis ranks each document in a review by risk, explains the ranking by mapping product features to claims, and logs every decision in an activity history. Questel's lead is written policy about its AI. Its AI Policy commits to the EU AI Act and describes an AI Committee, and it names OpenAI and open model families. It says inference inputs do not train its models and its services do not replace a lawyer's judgment. On Derwent Patent Monitor, reviewers enter descriptions of products not yet released.
Which one fits
Choose Derwent Patent Monitor if
- You need to triage many patent alerts against a product. Derwent Patent Monitor's Threat Analysis ranks the documents in a review by risk and explains each ranking by mapping your product's features to specific claims, so reviewers can clear irrelevant documents and start with likely blockers.
- Your freedom to operate reviews involve several roles. Derwent Patent Monitor runs project based reviews with role based feeds for analysts, attorneys and technical reviewers, lets them comment on patent text and carry annotations across related families, and records every action in a full activity history.
- Your alerts already come from Clarivate. Derwent Patent Monitor takes alerts and Derwent World Patents Index data from Derwent Innovation and Innography directly into review projects, and starts actions such as opposing, monitoring or acquiring a patent from the review.
Choose Questel if
- You want one vendor across patents, trademarks and filings. Questel pairs Orbit search and analytics, the Equinox IP management system in corporate and law firm editions, Markify for trademark clearance and watching, and a services arm handling filings, translation and renewals.
- Your AI review wants a written governance position. Questel's AI Policy commits to comply with the EU AI Act, describes an AI Committee drawing on legal, information security, data privacy and business functions, and states that its services do not replace the judgment of legal professionals.
- You need to name the models for a client. Questel's Trusted AI page names OpenAI and the open model families Mixtral, Falcon and Llama 2 behind its generative features, states that inference inputs do not train its models, and lets customers control retention with deletion within 30 days.
At a glance
All 15 axes, side by side
The same grid applied to every vendor in the index, graded from public sources. Hover a grade to see what the letter means on that axis.
AI Centrality
How much of the product is actually AI. Whether the machine learning is the mechanism the buyer is paying for or a feature layered onto conventional software, and whether the vendor is specific about which is which.
Threat Analysis ranks the documents in a review by risk and explains each ranking by mapping product features to claims. The review workflow around it works without the models: review projects, feeds by role, document assignment, comments on patent text, annotations carried across related families and projects, alerts from Derwent Innovation and Innography, actions a person starts (oppose, monitor, acquire), and a full activity history.
The core is a patent and trademark database business, an IP management system for docketing, renewals and forecasting, and a human services arm that handles filings, EP validation and translation through a network described as 320 agents and 1,200 translators. The AI features are discrete and marketed separately, among them the AI-Classifier, Qthena for prosecution workflow and Sophia, an agent that works across the platform. Without them, the databases, the management system and the services business remain. The one component built on the models is generative patent drafting, which came with the acquisition of qatent, and it is one product in a suite of roughly thirty.
Citation Accuracy and Hallucination Disclosure
Whether the vendor publishes measured accuracy on citations and assertions, grounds output to primary sources, and says plainly what its system does when it does not know. Legal has a documented public record of fabricated citations reaching filed briefs, so an untested claim of accuracy is not evidence.
The product ranks real patent documents drawn from Derwent alerts and DWPI, so the risk is a wrong ranking or a wrong mapping rather than fabricated authority. Threat Analysis explanations connect product features directly to specific claims, and the vendor says it pairs generative AI with more explainable AI for transparency. No accuracy, recall or false negative figure is published for the ranking, although the stated use includes confidently discarding documents.
The Trusted AI page carries a heading on transparency in the accuracy of results, and the text under it describes intentions rather than shipped behavior. The AI Policy disclaims the absolute accuracy of AI content and acknowledges the potential for hallucinations. A press release on the home page announces that the Questel AI Lab built a proprietary model to benchmark and improve semantic patent retrieval. No benchmark figure, test set or error rate is published on the home page, the AI Policy, the Trusted AI page or the AI in IP solutions entry.
Autonomy and Oversight Model
What the system decides on its own, what a lawyer must approve, and whether the vendor documents where the review point sits. A tool that drafts under review and a tool that files without one are different products and different risks.
Threat Analysis sets the order for the first pass. Reviewers are assigned documents through feeds set by role, annotate and comment in context, and start actions such as opposing, monitoring or acquiring a patent themselves. Every action is recorded in a full activity history the vendor calls an audit trail. Nothing says what happens to documents the ranking scores as low risk, whether a person must review a document before it is discarded, or at what score the product stops recommending. No limit is attached to any named mode.
The Trusted AI page says full automation is ideal in some instances, while in others AI should act as a supportive tool or human judgment is necessary, and that the balance must be found. The AI Policy places the duty on the buyer, making clients responsible for reviewing and verifying accuracy and completeness. The products are marketed as copilots and assistants. Neither document nor the product pages state what any feature runs unattended, where a reviewer sits in the workflow, what threshold stops the system, or what happens after it is wrong. The office action response and patent drafting assistants produce documents heading toward a patent office deadline.
Operational and Outcome Evidence
Named, dated evidence that the product works in production at real firms or legal departments. Case studies with figures and identified customers count. Unattributed testimonials and launch announcements do not.
The launch release of 24 November 2025 quotes a Clarivate vice president and states intended benefits, and the product page and blog describe use cases in general terms. No named customer, deployment or result is published for this product. Patent office adoption of the Derwent World Patents Index belongs to the search product and the data, not this review platform.
Dated client announcements on the home page and in the product navigation pair an organization with a product. ELT Group selected Orbit Intelligence, Fideon selected Equinox Law Firm, and HGF expanded Qthena across its patent practice after what is described as years of successful deployment. A separate case study describes how Equinox Law Firm supports Redchip Lawyers. The home page also runs a logo strip showing Sanofi, PepsiCo and Novartis among others, without attribution. The claim of more than 20,000 clients in 30 countries carries no basis, and no figure is attached to any named customer in the announcement headlines. Questel also publishes a client stories library.
Privilege and Confidentiality Posture
How client confidences are handled: attorney client privilege and work product treatment, segregation of one client matter from another, whether client data trains any model, and what the vendor commits to in writing rather than in marketing.
Clarivate's privacy policy treats Clarivate as processor for customer data under separately agreed data processing agreements, staff are bound by confidentiality, and the Clarivate Terms protect each party's confidential information. Threat Analysis works by mapping a customer's product features to patent claims, so reviewers supply descriptions of unreleased products, and attorneys' freedom to operate annotations are work product. Nothing published says how those inputs are stored, who at Clarivate can see them, or how privilege is treated.
The Trusted AI page confirms that the customer owns its inputs and outputs, and says the design removes the risk of revealing information relating to the representation of a client. The training, encryption and retention commitments on the same page add to that, as does the undertaking the AI Policy takes from third party providers. Article 5 of the AI Policy also tells clients not to submit confidential information they do not wish the AI engine to process. The agreements the AI Policy says govern all of this are referenced as signed with clients and are not published, so these commitments sit in policy rather than in a contract.
UPL and Professional Responsibility Posture
Whether the vendor is clear that it supplies a tool rather than legal advice, who its audience is, and how it addresses unauthorized practice of law, competence and supervision duties, and jurisdiction limits. ABA Formal Opinion 512 is the reference point. Where the advice line is not the duty a product raises, the axis is read through the nearest professional duty it does raise: judicial conduct rules and the reviewing duty for products sold only to courts, and the duty to bill for time actually spent for products that draft time entries.
The Clarivate Terms disclaim all warranties other than those stated, naming accuracy, completeness and currentness. The launch release presents the product as speeding critical IP decisions on freedom to operate, opposition and patent filing, and the product page invites users to confidently discard documents. No statement places the legal judgment with the attorney or addresses reliance on a ranking in a freedom to operate opinion.
AI Policy Article 5 states that Questel's Services are not intended to replace or substitute the expertise and judgment of legal professionals. Clients should seek professional legal advice before relying on AI generated outputs, and use of the Services remains under each client's professional responsibility. The position sits in a document about the product rather than in website terms. No jurisdiction limits are named, nothing addresses a practitioner's supervision or competence duties, and no professional conduct guidance is engaged.
AI Governance and Bias Disclosure
Published governance over model behavior: who owns it inside the vendor, what is tested before release, and what is disclosed about disparate output across matter types, parties, or populations.
Clarivate reports committees across functions building an AI Governance Framework. The product page says the product uses more explainable AI alongside generative AI to ensure complete transparency and explainability, with no disclosed test, owner or result behind it. Nothing covers how Threat Analysis is evaluated before release or how its ranking performs across technologies or jurisdictions.
Questel's Artificial Intelligence Policy applies across Questel SAS and its affiliates in six articles. It commits to complying with the EU AI Act, naming the regulation and its entry into force on 12 July 2024. Article 6 describes an AI Committee and a dedicated AI taskforce drawing on the legal, information security and data privacy functions, along with ongoing staff training on ethics, data privacy and security. Article 4 commits to safeguards against bias, among other misuse. The Trusted AI page adds an AI oversight committee, and says every conversation starts with whether the company should do something rather than whether it can. No individual is named as accountable, no testing before release is described, and no evaluation results are disclosed, including on bias.
AI Safety and Data Stewardship
Retention, deletion, access control, and what happens to prompts and documents after they are processed. Whether the vendor states its subprocessors and its incident practice, or leaves the buyer to assume.
Clarivate states an information security management system based on ISO 27001 and publishes a Trust Center and an incident response process at company level. The Trust Center says certifications vary by product. For this product, nothing says where review data, product feature descriptions and annotations are stored, how long they persist, who can access them or which subprocessors handle them.
AES-256 encryption at rest and TLS 1.2 or better in transit are set out on the Trusted AI page. It limits access to authorized employees who need it for engineering support, abuse investigation or legal compliance, plus specified contractors. Retention of AI conversations is under the customer's control. The Data Privacy Policy, updated May 2026, states no retention period at all, saying data is kept as long as necessary and pointing to an email address for more. Its third party section names thirteen website marketing and analytics tools, Google Analytics and LinkedIn Ads among them, and no processor that touches customer IP data. Incident practice is described only as notifying the supervisory authority and, where required, data subjects, with no commitment to customers.
AI Liability and Recourse
What the vendor stands behind contractually when its output is wrong. Indemnities, caps, carve outs, insurance, and whether any of it is published or only reachable through a negotiated agreement.
The Clarivate Terms, which govern Clarivate software generally, make the stated and order specific warranties exclusive. They give cancellation and a prorated refund where a valid software warranty claim is not fixed, cap liability, and disclaim accuracy, completeness and currentness. Nothing addresses a wrong Threat Analysis ranking specifically.
Article 5 of the AI Policy states that Questel does not guarantee the absolute accuracy of AI content generated by its Services and disclaims any liability for inaccuracies, given the potential for errors or hallucinations inherent to AI. The disclaimer is scoped to the Services rather than to the website. Article 2 refers to a Master Services Agreement and a Data Processing Agreement signed between Questel and its clients, and neither is published. No indemnity, liability cap, carve out, warranty on output or insurance position is published. The legal notice, a French mentions legales, is scoped by its own text to the corporate website and disclaims liability only for the site and its materials.
Practice Systems Integration Depth
How deeply the product reaches into the systems legal work already lives in: document management such as iManage and NetDocuments, Word and Outlook, contract lifecycle management, matter management, e-billing, and court filing systems.
The January 2026 product blog describes native integration with Derwent Innovation and Innography: alerts and DWPI data flow straight into review projects, search results can move directly into a project, and project details can be exported for analysis. The product page adds dedicated alert feeds for first pass review, follow ups and critical watch items. All named integrations sit within Clarivate's own suite; no integration with a firm's document management, docketing or IP management system is described, and no configuration detail is published.
Questel markets an Integrated IP Ecosystem and describes its management system as directly integrated with leading IP renewal services and IP databases. PAVIS Connect is sold as a renewals connector for companies and law firms that already run an IP management system, so it works inside another vendor's system rather than requiring a migration. The Markify Watch integration lets users reach trademark watches from within Equinox. An IP Services Portal handles ordering and monitoring of services. No public API reference, developer portal or integration documentation is published, and no connection to a document management system such as iManage or NetDocuments is named.
Deployment Model and Data Residency
Where the software runs and where the data sits. Multi tenant cloud, single tenant, private deployment, on premises, and whether region of residence is a published option or an enterprise conversation.
Derwent Patent Monitor is a hosted enterprise web platform in the Derwent suite. No data center region, residency option, tenancy model or processing location is published for it, and Clarivate's company material ties no hosting detail to this product.
The AI Policy describes the products as SaaS software solutions, and the Trusted AI page refers to business data stored on Questel systems. No hosting provider, data center location or country or region option is named, and nothing says whether customers share infrastructure or receive a dedicated instance. The only geography published is the privacy policy's transfer section. It says data may move to countries with different protection laws, with transfers out of the European Union covered by intra group agreements incorporating Standard Contractual Clauses and by clauses with third parties. That describes the legal basis for movement rather than where anything sits, and it covers personal data rather than the IP portfolios and unpublished applications the platform holds.
Security Certifications and Trust Center
Independent attestation a buyer can pull without a sales call: SOC 2, ISO 27001, penetration test summaries, a trust center with current reports and named scope rather than a badge image.
Clarivate says ISO/IEC 27001 is the basis of its information security management system and that its program aligns with ISO 27001 and SOC 2, and it publishes a Trust Center. The Trust Center says certifications and reports vary by product and are available from an account representative. No attestation is tied to Derwent Patent Monitor.
AI Policy Article 3 says Questel is an ISO 27001 certified company adhering to international standards for information security management, and an ISO mark appears on the home page. No scope statement, certificate date or validity period, auditor or certification body is published, and no SOC 2 or other attestation is claimed. There is no trust center or security portal, and no route to request a report or a completed questionnaire is published. The privacy policy points to a Questel IT Security Policy that is referenced but not published.
Model Supply Chain Disclosure
Which models sit underneath, whose they are, where they run, and whether the vendor commits to telling customers when that changes. A legal buyer inherits every dependency it cannot see.
The product page says Threat Analysis uses generative AI alongside more explainable AI and that the product is built on the Derwent World Patents Index. No architecture, model, version or provider is named, and no change notice is committed.
Generative models from OpenAI, used through API integrations, and open source models identified as Mixtral, Falcon and Llama 2 are named on the Trusted AI page, fine tuned on proprietary data sets with prompts optimized in house. No commitment to notify customers when the model set changes is published. The OpenAI relationship is an API integration, and nothing says where the open source models are hosted. Llama 2 and Falcon are older model generations, and a 2026 press release on the home page announces a new Questel AI Lab model for semantic patent search that the Trusted AI page does not mention.
Commercial Transparency
Whether a buyer can learn what this costs without entering a sales process: published rates, the unit being charged, what sits behind an enterprise tier, and what implementation adds.
No pricing information is published at any level. The product page leads to demo and contact requests, there is no pricing page or unit of charge for the product, and the Clarivate Terms treat pricing as confidential information.
Tiering is published across Equinox, Orbit and Markify, each split into named editions or modules, so the packaging and roughly which segment each tier addresses can be seen. No rate, band, unit of charge, currency or statement of what implementation adds is published, and the product pages route buyers to Request a call or Contact. Two products carry a BUY ONLINE label in the navigation, Defensive Publication and Markify Comprehensive Search, which points to a self serve purchase path.
Firm and Practice Coverage
Who the product is actually built for. AmLaw, midlaw, small firm and solo, in house departments, government and courts, and which practice areas are supported rather than merely claimed.
The product covers freedom to operate reviews, patentability, opposition and assertion decisions, and competitor monitoring. It serves IP professionals, attorneys, technical reviewers and R&D teams, using data from the Derwent World Patents Index, which the launch release describes as 67 million invention summaries written by more than 850 Clarivate specialists. No jurisdiction, technology or document type is named as one Threat Analysis handles well or poorly.
Questel publishes solution entries for law firms, life sciences and R&D and innovation teams, and the product line encodes the segmentation. Equinox ships as separate corporate and law firm editions, each with an enterprise variant, and the trademark side mirrors the same split. Practice coverage spans patents, trademarks, designs and domain names, with use cases from patentability and freedom to operate to clearance, prosecution and renewals. The life sciences entry names the products that serve that vertical. No firm size, portfolio size, minimum engagement, or practice area and jurisdiction the suite does not serve is stated on the solutions pages or the home page.
The 12 legal signals, side by side
Recorded rather than graded. These are the questions a practitioner has to answer before a tool touches a client matter, and the answers are taken from public material only.
Client Data in Training
Can material a lawyer puts into this product be used to train a model?
Clarivate's privacy policy and Terms do not address whether what users put into this product trains or improves models, in either direction. Threat Analysis maps a customer's product features to claims, so reviewers supply descriptions of products not yet released. The product page, product blog, launch release and the Clarivate material for Derwent Patent Search do not say whether those inputs or reviewers' decisions are used to improve the ranking.
Training on customer inputs is ruled out on the Trusted AI page, which lists the commitment first and covers information a user provides for AI inference such as a question, an invention description or an action query, acknowledged there as often confidential client information. AI Policy Article 3 extends the same requirement to third party providers, which undertake not to use client data to train or improve their own AI or machine learning models. The agreements the AI Policy refers to are not published, so the prohibition sits in policy rather than in a contract.
Prompt and Output Retention
How long does the product keep what a lawyer typed, and can that be set to zero?
The product page, product blog, launch release and the Clarivate material for Derwent Patent Search do not state how long review projects, product feature descriptions, annotations or Threat Analysis outputs are kept, or whether a customer can delete them.
Customers control the retention period, the Trusted AI page says, zero data retention applies once a customer leaves, and deleted conversations are removed from Questel systems within 30 days unless retention is legally required. Zero retention is not offered as a setting during use. The commitment covers AI inference data, not the wider account.
Ethical Walls and Matter Segregation
Does retrieval respect the firm’s ethical walls, or can the model read across them?
Reviews run as separate projects with folders and subfolders, the product blog says, and feeds set by role let patent analysts, attorneys and R&D reviewers see only what is relevant to their work. Annotations and decisions also carry forward across related projects. No permission model, administrator controls or walls between projects are documented.
The privacy policy lists roles based data access alongside encryption and intrusion detection. No permission model is described, nor how it is administered or whether it applies per user at query time, in the privacy policy, the AI Policy, the Trusted AI page or the law firm solutions entry. Nothing addresses walls or segregation by matter inside a customer account. Equinox is sold in law firm editions, and Sophia is marketed as an agent reaching across Questel's software.
Third Party Request and Subpoena Notice
If someone subpoenas the vendor for a firm’s data, does the firm hear about it first?
Questel's Data Privacy Policy, updated May 2026, lists duly authorized public authorities, judicial and control, among recipients of personal data under Questel's legal obligations, with no commitment to tell the customer. That clause covers personal data, not the patent, trademark and client files held in Questel's software, and the AI Policy, the Trusted AI page and the legal notice do not address a legal demand for that content. The agreements signed with clients are not published.
Primary Law Corpus Provenance
Where does the law in this product come from, and does the vendor have the right to use it?
The launch release says the product is built on the Derwent World Patents Index, described as 67 million invention summaries written by more than 850 Clarivate subject matter experts. DWPI is Clarivate's own proprietary asset. Alerts also arrive from Derwent Innovation and Innography, both Clarivate products.
Registry text rather than case law sits underneath, and Questel publishes it as a database owner, describing its offering as a unique collection of IP databases. The Trusted AI page says the models are fine tuned and optimized on public patent, trademark and design text, or on Questel's own data. It commits to acknowledging the source of training data and confirming permission to use it, with open source data or data provided by users as the examples. No license or rights basis is stated for any individual source, and no coverage figure or update cadence is published.
Good Law Verification
Does the product tell you when the authority it just cited has been overruled?
Whether a patent is still in force is the patent equivalent of good law. The product page, product blog and launch release do not say whether a review shows legal status for the documents Threat Analysis ranks. Status checks are described for Derwent Patent Search, a separate product, not for this one.
No citator applies. The suite manages and searches registered rights rather than returning legal authority whose later history could be checked. Registry currency is addressed instead: Prosecution Pack is described as providing grant statistics and detailed legal status analysis, and the IP management system exists to keep portfolio status aligned with office records. That is the status of a registration, not a judgment about whether an authority still stands.
Refusal and Uncertainty Behavior
What does the product do when the answer is not in the corpus?
Threat Analysis explains each ranking. The product page, product blog and launch release describe no confidence signal, no threshold below which it declines to rank, and no handling of documents it cannot assess, while the stated use includes confidently discarding documents.
The Trusted AI page says users need to be informed of AI use and of uncertainty in its responses, and given the means to verify them, and that this will be achieved by providing sources and explaining the reasons behind answers. That is written in the future tense as what the company considers necessary, not what a product does. No abstention path, confidence score or flag for low certainty is documented for Sophia, Qthena or the drafting assistants.
Fabricated Citation Record
Does a public court record exist addressing fabricated or hallucinated legal citations in output from this product?
The AI Hallucination Cases database kept by Damien Charlotin holds no entry naming Derwent Patent Monitor, Derwent or Clarivate. The product ranks existing patent documents for review rather than drafting filings.
The AI Hallucination Cases database kept by Damien Charlotin holds no entry naming Questel, Orbit, Sophia or Qthena as the AI tool used. Most of the AI here classifies, searches or manages registry data, while the drafting and office action assistants produce text that enters patent office proceedings rather than court filings.
Bar Guidance Alignment
Has the vendor engaged in public with the ethics opinions its buyers are bound by?
The product page, product blog and launch release do not engage with bar, patent office or professional conduct guidance, including guidance on AI use in patent practice.
The AI Policy's advice line is the only professional responsibility statement. The AI Policy, the Trusted AI page and the product pages refer to no ABA Formal Opinion 512, USPTO practitioner guidance on artificial intelligence, EPO or national patent attorney conduct rules, or bar opinion, though Questel sells prosecution assistants to law firms. The EU AI Act is named in Article 1, but it is technology regulation binding Questel rather than professional conduct guidance binding its buyers.
Billing and Fee Posture
Does the vendor address what happens to the bill when the work takes an hour instead of six?
The primary buyer is a corporate IP and R&D team reviewing its own freedom to operate and monitoring, which bills no client for the work. The vendor's savings claims (less time on irrelevant documents, faster first-pass review) are aimed at that team's own cost. Where outside attorneys review in the platform, nothing addresses how AI-assisted review is billed or disclosed.
The home page invites readers to imagine the time an AI driven IP management system could save, and the resource library carries pieces on saving time in prosecution work and on Equinox Law Firm. Nothing covers how a firm should bill for or disclose AI assisted drafting, office action responses or search work. Questel's invoice, cost management and fee audit services concern a client's own IP spend with outside agents, not AI assisted time on a law firm's invoice, and no record of AI assisted work is described for any product.
Outside Counsel Guideline Readiness
Can a firm get this vendor through a client’s AI clause without a bespoke negotiation?
No subprocessor list, statement of which model providers see customer content or disclosure material is published for this product, and no model provider is named. Clarivate's privacy policy names processors by category only.
The Trusted AI page names the model providers. No subprocessor list covering the products is published, since the privacy policy names website tools and no processor of customer IP data. No data processing addendum or disclosure pack for clients is published, and no route to obtain one without an agreement is offered. AI Policy Article 2 claims full transparency on third party providers as set out in the personal data policy, which names no processor of customer IP data.
Court Disclosure Support
If a judge’s standing order requires an AI disclosure, can the product produce one?
The product blog says every action in a review (assignment, annotation, decision) is recorded in a full activity history that gives an audit trail for compliance and defensibility, and project details can be exported. No record shows which model produced a ranking or explanation, so the history shows who decided but not what the model did.
The Trusted AI page recognizes an obligation to disclose clearly when content was generated autonomously by AI. That is labeling for users, described as an obligation rather than an exportable record, and no product is said to implement it. No export ties a passage to the model that produced it, the sources it drew on or the person who reviewed it, for Sophia, Qthena or the drafting assistants. Their output goes into patent prosecution rather than court filings.
The questions both sides leave open
Derived from the records above rather than written, so it cannot favor either vendor. Take these into both conversations and ask each side the same question.
- Third Party Request and Subpoena Notice
- Good Law Verification
- Refusal and Uncertainty Behavior
In summary
Derwent Patent Monitor
Derwent Patent Monitor is Clarivate's collaborative patent review platform for freedom to operate, patentability, opposition and monitoring work. It launched in November 2025 as a separate product from Derwent Patent Search. Patent alerts from Derwent Innovation and Innography flow into project based reviews, where analysts, attorneys and technical reviewers work from role based feeds, annotate patents and start actions such as opposing or acquiring. According to the AI Legal Index, its AI, Threat Analysis, ranks documents by risk and maps product features to claims, and every review decision is recorded in an activity history. It is built on the Derwent World Patents Index.
Questel
Questel, based in Paris, sells a broad intellectual property suite. Orbit handles patent search and analytics, including biosequence and chemistry databases. The Equinox IP management system serves corporations and law firms, Markify covers trademark clearance and watching, and a services arm handles filings, translation and renewals. AI assistants run across it, including generative patent drafting, office action response drafting, Qthena for prosecution workflow and Sophia as a cross platform agent. According to the AI Legal Index, Questel publishes an AI Policy committing to the EU AI Act, names OpenAI among its model providers, and states ISO 27001. Questel reports more than 20,000 clients across 30 countries.
Questions buyers ask
Derwent Patent Monitor vs Questel: which is better for patent review?
They differ in scope. Derwent Patent Monitor is a focused review platform whose AI ranks alerts by risk against a product, while Questel sells a full IP suite with AI assistants across search, prosecution and trademarks. Derwent Patent Monitor builds its review around the AI ranking and logs every decision. Questel publishes more about how it governs its AI, with a written AI Policy, named model providers and an advice line. From the AI Legal Index, based on each vendor's own published materials as of September 27, 2026. No vendor pays for placement.
How does Derwent Patent Monitor's Threat Analysis work?
It ranks the documents in a review by risk and gives an explanation mapping the product's features to specific patent claims, so reviewers can clear irrelevant documents and look first at likely blockers. Clarivate says it combines generative AI with more explainable AI. Reviewers then decide, and start actions such as opposing, monitoring or acquiring a patent themselves. From the AI Legal Index, based on each vendor's own published materials as of September 27, 2026. No vendor pays for placement.
Which AI models does Questel use?
Questel's Trusted AI page names OpenAI's models through API integration and the open model families Mixtral, Falcon and Llama 2, fine tuned on public patent, trademark and design text or its own data. Those families are older, and a proprietary model Questel has since announced for patent search is not listed. From the AI Legal Index, based on each vendor's own published materials as of September 27, 2026. No vendor pays for placement.
Does Questel train AI on client inventions?
Its Trusted AI page states that information submitted for AI inference, including invention descriptions, is not used to train or fine tune its models, and its AI Policy says third party providers undertake not to train on client data. Both are policy statements, and the AI Policy points to the Master Services Agreement and Data Processing Agreement each client signs. From the AI Legal Index, based on each vendor's own published materials as of September 27, 2026. No vendor pays for placement.
Neither vendor paid for inclusion, placement or a grade, and neither reviewed this page before it published. Everything on it comes from public material on the dates shown. How the index grades.
Two things to weigh. Questel's named models date from earlier generations, and a newer proprietary model it has announced does not appear on its Trusted AI page. Questel's AI Policy disclaims liability for inaccurate AI output, and its master services agreement is not published. Neither vendor reviewed this page.