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Derwent Patent Search

The AI drives core features of a product that works without it. AI Search uses a language transformer model trained on the Derwent World Patents Index, launched in December 2024 across more than 160 million patent records. Other AI fills in missing bibliographic fields, resolves current ownership up to the ultimate parent, and predicts expiration date, remaining life and whether a patent is alive. Underneath is a curated database and a classic search engine, and Clarivate sells it that way: AI Search is one mode beside keyword and Boolean search across more than 300 fields, classification browsing, the citation index and Themescape maps.

Without the models, customers still get invention summaries written by over 800 patent editors, family building, full text from 76 jurisdictions and litigation data from more than 140. The AI is trained on the editors' work rather than replacing it.

AI Search returns real patent records from a closed, curated index rather than generating statements about the law, so every result is a real document with an identifier. The retrieval method is described: a language transformer model trained on the Derwent World Patents Index that takes free text such as an invention disclosure. Clarivate explains why that matters: the model learns from editors' summaries of novelty, use and advantage rather than raw patent text.

What is missing is measurement. No recall or precision figure, test set or comparison with keyword or Boolean searching is published, and nothing says what the model misses. For first pass patentability and freedom to operate work, recall is the number that matters. A named customer's statement that the most relevant records now appear first is a testimonial, not a measurement.

Users choose whether a model is involved. AI Search sits beside keyword, Boolean, advanced and classification searching, and Clarivate describes it as helping validate results and make sure relevant records are not missed, a complement rather than a replacement. No other oversight material is published. Nothing tells a searcher what to check before relying on AI Search results, no confidence signal or ranking explanation is published, and nothing describes how the model behaves outside its training.

A search tool that returns ranked records does not act on its own, so unattended action is not the issue. The stakes are still real, because a missed prior art reference can decide a patentability opinion.

Clarivate says 40 patent and trademark offices, the bodies that examine patentability for a living, use the platform and its index. In the launch release, Susan Johnson, patent agent and IP researcher at Boston Scientific, says other tools made her review 50 to 200 results to find the most relevant, while AI Search puts them at the top. Neither claim is dated, the comparison has no method, and the 40 offices are counted, not named.

Confidentiality is stated in general corporate terms, and the question this product raises goes unanswered. The privacy policy says Clarivate acts as processor for data customers enter, under separate data processing agreements, and that staff and providers are bound by confidentiality. The Clarivate Terms protect each party's confidential information. But AI Search invites an invention disclosure, which is unpublished, destroys novelty if it leaks, and is often privileged.

Nothing says whether a search is stored, for how long, whether it is tied to a user, used to improve the model, or visible to Clarivate staff. Privilege, work product, model provider terms and retention are not addressed.

The Clarivate Terms carry a standard disclaimer while the marketing speaks of professional decisions. The terms disclaim all unstated warranties, including accuracy, completeness and currentness, the properties a prior art searcher relies on. The marketing promises reliable innovation decisions, accurate first pass patentability searches, input to freedom to operate opinions and confident patentability assessments, which are legal work product.

The audience is clear: patent researchers, patent attorneys and other IP and R&D professionals, so people who are not lawyers are intended users. Nothing says where the tool's output stops and professional judgment begins, nothing covers supervision, competence or an R&D user relying on a result without counsel, and no jurisdiction or professional rule is named.

Clarivate describes AI governance as work in progress. At company level it reports committees drawn from several functions working on an AI Governance Framework and guiding business leaders as generative AI enters products. Nothing ties that framework to this product. No responsible AI page, accountable owner for model behavior, testing before release or evaluation result is published, and bias is not addressed. That matters because AI Search learns from an index written by human editors, so any lean in that editorial work toward certain technologies, jurisdictions or drafting styles would carry into what the model finds.

Clarivate publishes a corporate security program and nothing about what happens to what users type in. Its Information Security Program page says its management system is based on ISO/IEC 27001, with documented policies, standards and controls and an in house security team. A public Trust Center covers security, privacy and compliance, and an incident response process is described: identify, investigate, contain and correct.

For this product there is no retention period for searches, no deletion commitment, no statement on whether AI Search inputs are logged or reused, no subprocessor list, and no description of access controls in the product. That matters because the input is often an invention disclosure. Detailed certification and testing material on the Clarivate site belongs to Ex Libris, a separate business unit, and Clarivate's Trust Center says certifications may vary by product.

Clarivate's terms publish a real liability position that stops short of covering the AI. Stated warranties, plus any in the order, are the only warranties. For software, if a valid warranty claim cannot be fixed in a reasonable time, the customer may cancel and get a refund based on five year straight line depreciation from the order date. For services, Clarivate will rectify on written notice. Each party's total liability, and that of Clarivate's providers, is capped at direct damages up to twelve months of fees for the product concerned.

Lost profits, data and other indirect losses are excluded on both sides. The terms disclaim accuracy, completeness and currentness, which are what a prior art search rests on, and no AI provision, vendor indemnity or insurance position is published.

Integration is described mostly in the contract. The Clarivate Terms say licensed data may be delivered by API or data feed, and that APIs may let hosted or installed software be configured or work with third party programs, with keys that may not be shared or used to copy Clarivate features. Within the product, the index and citation data are joined with full text, machine translation for China, Korea and Japan, and litigation data from Darts-ip.

No connector catalog or developer documentation is published, no direction of data flow is described, and no outside system is named as supported, though customers usually also run an IP management or docketing system.

Derwent Patent Search is a hosted browser application licensed by subscription, and the Clarivate Terms cover both hosted and installed software. Nothing states the data center region, country of processing or a regional choice for this product, or whether saved searches, alerts and work files sit in a shared or isolated environment. No single tenant, private or on premises option is offered or ruled out. Detailed residency material on the Clarivate site covering the United States, Europe and Asia Pacific belongs to Ex Libris, a separate business unit, and Clarivate's Trust Center says certifications and reports may vary by product and refers questions to an account representative.

Clarivate says at company level that its security management system is based on ISO/IEC 27001, with documented controls, and that its program aligns with ISO 27001 and SOC 2. A public Trust Center covers security, privacy and compliance. It says certifications and reports may vary by product and refers questions to an account representative, so the public record does not show whether Derwent Patent Search is in scope.

No report, certificate, audit period or auditor is available without that conversation. The ISO 22301, 27001, 27017, 27018, 27032 and 27701 certifications detailed on the Clarivate site belong to Ex Libris.

Clarivate describes the AI design and names no provider. AI Search uses a language transformer model, also called a large language AI model, trained and powered by the Derwent World Patents Index, Clarivate's own editorially curated index. Clarivate markets it as the only AI patent search trained on that data. Naming the training corpus, and owning it, is a strong disclosure. No model, version or provider is named, nothing says whether the model was built in house or licensed and fine tuned, nothing says where it runs, and no notice of changes is promised. The same goes for the AI behind data enrichment, ownership resolution and legal status prediction.

No pricing is published at any level, not even the unit of charge. There is no pricing page; the product page offers only a free trial request, and the wider site leads to contact and demo requests. Nothing says whether the subscription is priced per named user, per seat, per module, by search volume or by coverage, or what AI Search costs on top of the base platform. The Clarivate Terms put fees in an order form and treat pricing and discounts as confidential information the customer may not disclose. A third party listing also says no pricing is published.

Coverage is stated with precise figures, each scoped separately. The Derwent World Patents Index covers 60 jurisdictions and 132 million patents. Enhanced full text covers 76 jurisdictions and bibliographic data 109, more than 178 million publications in all, and litigation data covers more than 140 jurisdictions. Machine translation covers major authorities including China, Korea and Japan, and the interface runs in Chinese, English, Japanese and Korean.

Users are named as patent researchers, patent attorneys and other IP and R&D professionals, and 40 patent and trademark offices use it. Use cases include patentability, freedom to operate, invalidity, prosecution, portfolio monitoring, licensing and litigation support. The limits are missing. No technology area is named as weaker, the 41 new index codes for emerging areas suggest the taxonomy trails new fields without saying by how much, and nothing separates this product's coverage from Derwent Patent Monitor.