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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 ...
PATENTSCOPE is a global patent database and search system developed and maintained by the World Intellectual Property Organization. It provides free and open access to a vast collection of international patent documents, including patent applications , granted patents, and related technical information.
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 ...
Although the standard practice of many national patent offices seems to be to calculate SPC term based upon date (1), an October 2011 article in Scrip Regulatory Affairs by Mike Snodin [12] argues that this standard practice is incorrect and that date (2) should be used instead (with the result that some products may be entitled to a slightly ...
number (required) is a patent number, without leading "US" letters, but with leading "D" letter if patent number contains it, and is required. issue-date (optional) is the date of issuing (granting). inventor (optional) is a name of inventor; it can be a wiki-link, of course. title (optional) is the title of the patent.
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.
The abrupt drop in sales expected after the date of patent expiration can be estimated with the following formula: [2] = where A is the peak sales value before the patent expiration and Y the years after the peak sales year (the peak sales year is considered year 0), and B is an exponent with value -1.032. The formula above could be simplified ...