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English: Bar chart showing number of United States utility patents issued by year, from 1976, with indicators of issue dates of Patent Nos. 5,000,000, 6,000,000 ... 11,000,000 Data source for Version 4 is USPTO (calendar years): Data source through 2020: U.S. Patent Activity / Calendar Years 1790 to the Present. U.S. Patent and Trademark Office ...
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 ...
The publication data encompasses the publication number given when the patent is published, 18 months after filling and the publication date. The issue date is the data the patent is granted, usually 3.5 years after filling depending on the patent office. Crossing dates and locations fields offer a global vision of a technology in time and space.
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.
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The X generally appears at the end of the numbers hand-written on full-page patent images; however, in patent collections and for search purposes, the X is considered to be the patent type – analogous to the "D" of design patents – and appears at the beginning of the number. The X distinguishes the patents from those issued after the fire ...
According to the Patent Information News' magazine published by the EPO, a 2013 independent study compared Espacenet with DepatisNet, Freepatentsonline, Google Patent and the public search facility at the USPTO. In that study, Espacenet reportedly obtained the highest score for both data coverage and customer support, and the best overall ...
The Derwent World Patents Index (DWPI) is a database containing patent applications and grants from 44 of the world's patent issuing authorities. [1] [2]Compiled in English by editorial staff, the database provides a short abstract detailing the nature and use of the invention described in a patent and is indexed into alphanumeric technology categories to allow retrieval of relevant patent ...