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United States patent law
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Under United States law, a patent is a right granted to the inventor of a process, machine, article of manufacture, or composition of matter, that is new, useful, and non-obvious. A patent is the righ
U.S. patent (1985-2018)
U.S. patent (1985-2018)
U.S. patent (2018-present)
U.S. patent (2018-present)
History of United States patent law
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The history of United States patent law started even before the U.S. Constitution was adopted, with some state-specific patent laws. The history spans over more than three centuries.
The first U.S. patent, issued to Samuel Hopkins on July 31, 1790, for an innovative way of making "pot ash and pearl ash"
The first U.S. patent, issued to Samuel Hopkins on July 31, 1790, for an innovative way of making "pot ash and pearl ash"