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  2. Patentscope - Wikipedia

    en.wikipedia.org/wiki/Patentscope

    Users can apply various search filters, such as publication date, patent classification, applicant's name, and legal status, to narrow down their searches. The system also supports boolean operators and wildcard characters, enabling complex and customized search queries. [13] [14] Patent family information

  3. Google Patents - Wikipedia, the free encyclopedia

    en.wikipedia.org/wiki/Google_Patents

    Wikipedia entry for Google Patents.Google Patents is a search engine from Google that indexes patents and patent applications from the United States Patent and Trademark Office.

  4. Espacenet - Wikipedia

    en.wikipedia.org/wiki/Espacenet

    In 2004, i.e. in the early years of Espacenet, Nancy Lambert considered that, although free, Espacenet, like the United States Patent and Trademark Office (USPTO) database of US patents, "still tend[ed] to have primitive search engines and in some cases rather cumbersome mechanisms to download patents."

  5. 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 ...

  6. United States Patent and Trademark Office - Wikipedia

    en.wikipedia.org/wiki/United_States_Patent_and...

    The USPTO web site provides free electronic copies of issued patents and patent applications as multiple-page TIFF (graphic) documents. The site also provides Boolean search and analysis tools. [99] The USPTO's free distribution service only distributes the patent documents as a set of TIFF files. [100]

  7. List of prolific inventors - Wikipedia

    en.wikipedia.org/wiki/List_of_prolific_inventors

    The 100 known most prolific inventors based on worldwide utility patents are shown in the following table. While in many cases this is the number of utility patents granted by the United States Patent and Trademark Office, it may include utility patents granted by other countries, as noted by the source references for an inventor.

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