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The 100 known most prolific inventors based on worldwide utility patents are shown in the following table. While in many cases this is the number of utility patents granted by the United States Patent and Trademark Office, it may include utility patents granted by other countries, as noted by the source references for an inventor.
In patent law, an inventor is the person, or persons in United States patent law, who contribute to the claims of a patentable invention. In some patent law frameworks, however, such as in the European Patent Convention (EPC) and its case law , no explicit, accurate definition of who exactly is an inventor is provided.
Until 16 March 2013 the US gave priority to first inventors to invent, although the US adopted first inventor to file system since (see First to file and first to invent). The US has provisional patent applications , which can be filed one year before filing regular patent application, thus delaying the start on the nominal 20 year patent term ...
Esther Takeuchi (born 1953) – holds more than 150 US-patents, the largest number for any woman in the United States; Igor Tamm (1895–1971), Russia – co-developer of tokamak; Ching W. Tang (born 1947), Hong Kong/U.S., together with Steven Van Slyke, U.S. – OLED; Mardi bin Ali al-Tarsusi (c. 1187), Middle East – counterweight trebuchet ...
The delay was attributed by spokesmen for the Patent Office to a combination of a sudden increase in business method patent filings after the 1998 State Street Bank decision, the unfamiliarity of patent examiners with the business and financial arts (e.g., banking, insurance, stock trading etc.), and the issuance of a number of controversial ...
On July 31, 1790, inventor Samuel Hopkins of Pittsford, Vermont became the first person to be issued a patent in the United States. His patented invention was an improvement in the "making of Pot Ash by a new apparatus & process." The Patent Office was the only major government building to survive the British invasion of Washington, D.C ...
Below is a list of Edison patents. Thomas Edison was an inventor who accumulated 2,332 [1] patents worldwide for his inventions. 1,093 of Edison's patents were in the United States, but other patents were approved in countries around the globe.
An invention that arranges old elements with each performing the same function it had been known to perform fell under the heading of "work of the skillful mechanic, not of that of the inventor". See Non-obviousness in United States patent law. Parker v. Flook: 437 U.S. 584: 1978