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  2. Machine (patent) - Wikipedia

    en.wikipedia.org/wiki/Machine_(patent)

    In United States patent law, a machine is one of the four principal categories of things that may be patented. The other three are a process (also termed a method ), an article of manufacture (also termed a manufacture ), and a composition of matter .

  3. Patentable subject matter in the United States - Wikipedia

    en.wikipedia.org/wiki/Patentable_subject_matter...

    (a) the problem with biological inventions is where the discovery of Nature's work ends and where a human invention begins, i.e. patent monopoly should not encompass a "natural phenomenon or a law of nature". (b) the problem with the software inventions (such as “mathematical algorithms, including those executed on a generic computer,...

  4. Method (patent) - Wikipedia

    en.wikipedia.org/wiki/Method_(patent)

    In United States patent law, a method, also called "process", is one of the four principal categories of things that may be patented through "utility patents".The other three are a machine, an article of manufacture (also termed a manufacture), and a composition of matter.

  5. Patent - Wikipedia

    en.wikipedia.org/wiki/Patent

    Some countries have "working provisions" that require the invention be exploited in the jurisdiction it covers. Consequences of not working an invention vary from one country to another, ranging from revocation of the patent rights to the awarding of a compulsory license awarded by the courts to a party wishing to exploit a patented invention ...

  6. Newman's energy machine - Wikipedia

    en.wikipedia.org/wiki/Newman's_energy_machine

    Newman's Energy Machine was a DC motor which the inventor, Joseph Newman, claimed to produce mechanical power exceeding the electrical power being supplied to it. In 1979, Newman attempted to patent the device, but it was rejected by the United States Patent Office as being a perpetual motion machine . [ 1 ]

  7. United States patent law - Wikipedia

    en.wikipedia.org/wiki/United_States_patent_law

    This statute allows the US government to override patent protection (or contract another entity to do so) for public-use purposes. The patent owner can sue for limited compensation. [36] Invention Secrecy Act (1951) Patent Act of 1790, First Patent Act - April 7, 1790; Patent Act of 1836; Patent Act of 1870; Patent Act of 1952; Patent Reform ...

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