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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 ...
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 long history of patents and strong protection of patent holders contributes to abuse of the system by patent trolls, which are largely absent in other countries. [ citation needed ] The US also has an extensive body of case law comprising federal court precedents that have accumulated over more than 200 years.
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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.
The number of patents has been increasing steadily, thus forcing companies to consider intellectual property as a part of their strategy. So patent visualisation like patent mapping is used to quickly view patent portfolios. Patent mapping – graphical modeling used in patent visualisation. This practice "enables companies to identify the ...
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