Patents by Inventor Alla V. Nozhkina

Alla V. Nozhkina 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).

  • Individual abrasive grains with a silicon-base alloy coating
    Patent number: 4184853
    Abstract: An abrasive material the grains of which have at least a three-component coating comprising silicon, at least one element of the group which consists of copper, silver, gold, aluminium and transition metals of the 4th-8th groups of the periodic system, and an element chosen from the group which consists of gallium, indium, thallium, germanium, tin, lead, phosphorus, antimony, tellurium and sulphur.
    Type: Grant
    Filed: April 21, 1976
    Date of Patent: January 22, 1980
    Inventors: Petr P. Otopkov, Alla V. Nozhkina, Valery I. Kostikov, Jury I. Andropov, Anatoly I. Senchakov, Anna Y. Pesina, Alexandr V. Kabanov