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In the United States, for utility patents filed on or after June 8, 1995, the term of the patent is 20 years from the earliest filing date of the application on which the patent was granted and any prior U.S. or Patent Cooperation Treaty (PCT) applications from which the patent claims priority (excluding provisional applications). For patents ...
The original patent term under the 1790 Patent Act was decided individually for each patent, but "not exceeding fourteen years". The 1836 Patent Act (5 Stat. 117, 119, 5) provided (in addition to the fourteen-year term) an extension "for the term of seven years from and after the expiration of the first term" in certain circumstances, when the inventor hasn't got "a reasonable remuneration for ...
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 ...
[5] The Patent Act of 1836 (Ch. 357, 5 Stat. 117) further clarified United States patent law to the extent of establishing a patent office where patent applications are filed, processed, and granted, contingent upon the language and scope of the claimant's invention, for a patent term of 14 years with an extension of up to an additional 7 years ...
The Leahy-Smith America Invents Act (AIA) became fully effective in March 2013, and its impact over the last five years continues to disrupt U.S. patent practice.
More U.S. utility patents have been issued in the most recent thirty years than in the first 200 years in which they were issued (1790–1990). Although not clearly defined, [1] the backlog of unexamined patent applications consists, at one point in time, of all the patent applications that have been filed and still remain to be examined.