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  2. O-ring - Wikipedia

    en.wikipedia.org/wiki/O-ring

    Typical O-ring and application. An O-ring, also known as a packing or a toric joint, is a mechanical gasket in the shape of a torus; it is a loop of elastomer with a round cross-section, designed to be seated in a groove and compressed during assembly between two or more parts, forming a seal at the interface.

  3. History of patent law - Wikipedia

    en.wikipedia.org/wiki/History_of_patent_law

    The patent laws were again revised in 1836, [23] and the examination of patent applications was reinstituted. [24] In 1870 Congress passed a law which mainly reorganized and reenacted existing law, but also made some important changes, such as giving the commissioner of patents the authority to draft rules and regulations for the Patent Office.

  4. Oring - Wikipedia

    en.wikipedia.org/wiki/Oring

    O-ring, a gasket or seal with an O-shaped cross-section; O-ring chain, a specialized type of roller chain; Oring language, in Nigeria; Orienteering. Fox Oring; OR-ing as an operation of logical disjunction, in logic, electronics, or computer science; Ring of O, the BDSM jewelry; O-Ring theory of economic development; O-Ring failure as a cause ...

  5. History of United States patent law - Wikipedia

    en.wikipedia.org/wiki/History_of_United_States...

    Under the Patent Act of 1793, the United States barred foreign inventors from receiving patents at the same time as granting patents to Americans who had pirated technology from other countries. “America thus became, by national policy and legislative act, the world’s premier legal sanctuary for industrial pirates.

  6. O-ring theory of economic development - Wikipedia

    en.wikipedia.org/wiki/O-ring_theory_of_economic...

    The O-ring theory of economic development is a model of economic development put forward by Michael Kremer in 1993, [1] which proposes that tasks of production must be executed proficiently together in order for any of them to be of high value. The key feature of this model is positive assortative matching, whereby people with similar skill ...

  7. The Somewhat Controversial History Behind Princess Diana’s ...

    www.aol.com/lifestyle/somewhat-controversial...

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  8. United States patent law - Wikipedia

    en.wikipedia.org/wiki/United_States_patent_law

    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.

  9. Outline of patents - Wikipedia

    en.wikipedia.org/wiki/Outline_of_patents

    History of patent law – generally considered to have started with the Venetian Statute of 1474 and the 1624 English Statute of Monopolies. [3] History of United States patent law – this started even before the U.S. Constitution was adopted, with some state-specific patent laws. The history spans over more than three centuries.