United States Patent

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List Of Puerto Rican Scientists And Inventors - See Also
... Puerto Rico portal Biography portal United States portal Science and technology in the United States African-American contributions Discoveries NASA ... inventions, please see Timeline of United States inventions School of Tropical Medicine History of United States patent law Lemelson Foundation Lemelson–MIT Prize List of African American ...
... states (joined the Union on August 21, 1959), and is the only U.S ... state made up entirely of islands ... The state encompasses nearly the entire volcanic Hawaiian Island chain, which comprises hundreds of islands spread over 1,500 miles (2,400 km) ...
Leaf Valve
... Patents exist in the United states which specify the mechanical use use of leaf valves to control various types of fluids ... United States Patent 4930535 is a folding leaf valve which is described as a valve that,"folds upon itself to provide positive sealing of a pressurized chamber under a ... and provide a positive seal even at low differential pressure." United States Patent 4795340 is a single leaf valve for a gas-fired boiler ...
Patent Attorney - Qualification Regimes - United States
... In the United States, a practitioner may either be a patent attorney or patent agent ... Both patent attorneys and patent agents have the same license to practice and represent clients before the United States Patent and Trademark Office (USPTO) ... Both patent agents and patent attorneys may prepare, file, and prosecute patent applications ...
Mills Novelty Company - Mills Violano-Virtuoso
... Henry Sandell arrived in the United States from Sweden at the age of about 10 in about 1888 ... He was granted his first United States patent on the mechanism at the age of 21, in about 1899 and put his proposals and patents before the Mills ... On 27 March 1905 Henry Sandell filed an application for a United States patent for an electric self playing violin ...

Famous quotes containing the words united states, patent, united and/or states:

    The recognition of Russia on November 16, 1933, started forces which were to have considerable influence in the attempt to collectivize the United States.
    Herbert Hoover (1874–1964)

    There is a patent office at the seat of government of the universe, whose managers are as much interested in the dispersion of seeds as anybody at Washington can be, and their operations are infinitely more extensive and regular.
    Henry David Thoreau (1817–1862)

    In the United States the whites speak well of the Blacks but think bad about them, whereas the Blacks talk bad and think bad about the whites. Whites fear Blacks, because they have a bad conscience, and Blacks hate whites because they need not have a bad conscience.
    Friedrich Dürrenmatt (1921–1990)

    Perhaps anxious politicians may prove that only seventeen white men and five negroes were concerned in the late enterprise; but their very anxiety to prove this might suggest to themselves that all is not told. Why do they still dodge the truth? They are so anxious because of a dim consciousness of the fact, which they do not distinctly face, that at least a million of the free inhabitants of the United States would have rejoiced if it had succeeded. They at most only criticise the tactics.
    Henry David Thoreau (1817–1862)