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2. Patent Application Information Retrieval - Wikipedia

   en.wikipedia.org/wiki/Patent_Application...

   Patent Application Information Retrieval (PAIR) is an online service provided by the United States Patent and Trademark Office to allow users to see the prosecution histories of United States patents and patent applications and obtain copies of documents filed therein. There are two services: Public PAIR, which allows the general public to ...

3. Prior art - Wikipedia

   en.wikipedia.org/wiki/Prior_art

   A free public search tool gateway for WIPO's global collections of searchable IP data." United States Patent and Trademark Office. Patent Application Information Retrieval (PAIR), the USPTO search engine for patent and patent application file histories displays reasons why patents are issued; search by application number or customer number.

4. Patentscope - Wikipedia

   en.wikipedia.org/wiki/Patentscope

   PATENTSCOPE is a global patent database and search system developed and maintained by the World Intellectual Property Organization. It provides free and open access to a vast collection of international patent documents, including patent applications, granted patents, and related technical information.

5. Espacenet - Wikipedia

   en.wikipedia.org/wiki/Espacenet

   Espacenet (formerly stylized as esp@cenet) [1] [2] is a free online service for searching patents and patent applications.Espacenet was developed by the European Patent Office (EPO) together with the member states of the European Patent Organisation.

6. Global Dossier - Wikipedia

   en.wikipedia.org/wiki/Global_Dossier

   The Global Dossier is an online public service launched in June 2014 by the five "IP5" offices, i.e. the European Patent Office (EPO), the Japan Patent Office (JPO), the Korean Intellectual Property Office (KIPO), China's National Intellectual Property Administration (CNIPA) and the US Patent and Trademark Office (USPTO), to offer an integrated access to the respective "file wrappers", free of ...

7. Public participation in patent examination - Wikipedia

   en.wikipedia.org/wiki/Public_participation_in...

   Patexia provides a free online search engine capable of searching patents and patent litigation by patent number, company, or keyword; an online news aggregator on innovation and IP topics; a contest platform with prizes for crowdsourced patent research; and a freelance marketplace to connect its subject-matter experts to businesses for direct ...