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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 ...
In 2013, with the addition of the United States Patent and Trademark Office (USPTO) and China’s national patent collections the database past the 30 million record mark. [4] [5] In 2014, Espacenet, Patentscope and Depatisnet were the main multinational patent databases offered by patent authorities which are available to the public free of ...
1547–1582. The rolls for the years 1547–1582 were published in calendar form in 19 volumes, under the title Calendar of the Patent Rolls, between 1924 and 1986. 1582–1603. In the late 1980s, the Public Record Office suspended its programme of scholarly publication, and the initiative passed to the List and Index Society. Between 1990 and ...
List of software patents; List of steam technology patents; T. List of Nikola Tesla patents This page was last edited on 25 November 2006, at 17:46 (UTC). ...
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.
This is a list of software patents, which contains notable patents and patent applications involving computer programs (also known as a software patent). Software patents cover a wide range of topics and there is therefore important debate about whether such subject-matter should be excluded from patent protection. [ 1 ]
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 ...