Research Disclosure

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System Data

System name: Research Disclosure non-patent prior art database

Company name: Kenneth Mason Publications Ltd

Length of Service: Launched in 1960

Target User: IP professionals; patent offices; ISAs; research & development professionals; corporate librarians; inventors; universities

Subscription type: Free trial; single- or multi-user annual licences to database (includes free monthly print journal); journal only Status: PCT Minimum Documentation

Frequency: Database updated daily; journal published monthly

Coverage: Worldwide (A principal object of the defensive publication strategy is to establish a disclosure as prior art to the satisfaction of a patent office or tribunal so as to avoid or mitigate the risk of litigation. However, different jurisdictions have different evidentiary requirements. Research Disclosure publishes disclosures in form to satisfy the varying international evidentiary standards.)


For fifty years, Research Disclosure has been the industry standard prior art disclosure service, combining full disclosure in print and online. The printed journal is mailed monthly to the world’s patent offices as well as subscribers. Research Disclosure is widely cited (in the case of the USPTO, for example, over 16,000 references in successful applications to date – February 2010). Research Disclosure has PCT Minimum Documentation status. Disclosures can be published anonymously or with authorship information.

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