Patents by Inventor Mikhail Vladimirovich Pikunov

Mikhail Vladimirovich Pikunov has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Tooth filling alloy
    Patent number: 4015981
    Abstract: The alloy for filling tooth cavity contains the following elements, in per cent by weight: gallium, 36 - 40; tin, 26 - 27, and copper, 34 - 37. Said compound is prepared by mixing 40 - 45 per cent of a liquid gallium--tin alloy containing 11 per cent by weight of tin, with 55 - 60 per cent by weight of powdered copper-tin alloy (Cu.sub.3 Sn) having particle size not exceeding 40 microns. Said powder should contain particles sizing less than 20 microns in the quantity of 55-70 per cent by weight.The proposed compound has both good elasticity and high strength; it is easily filled into the tooth cavity and can be readily shaped, and finally it can work in the mouth cavity for lengthy periods of time.
    Type: Grant
    Filed: March 30, 1976
    Date of Patent: April 5, 1977
    Inventors: Svetlana Tanovna Rogova, Mikhail Vladimirovich Pikunov, Alla Ivanovna Kuptsova, Galina Zakharovna Obukhova, Dmitry Mikhailovich Karalnik, Anatoly Ivanovich Rybakov