Patents by Inventor Lev V. Polyakov

Lev V. Polyakov 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).

  • Corrosion-resistant cast iron
    Patent number: 4405367
    Abstract: A corrosion-resistant cast iron comprises (by mass %):______________________________________ carbon 2.5 to 3.2 silicon 0.95 to 2.4 manganese 0.8 to 4.0 nickel 12.0 to 18.0 chromium 0.5 to 2.0 copper 4.0 to 8.0 aluminium 0.01 to 0.3 magnesium 0.005 to 0.07 calcium 0.01 to 0.10 rare-earth metals 0.001 to 0.08 barium 0.001 to 0.1 tantalum 0.003 to 0.02 niobium 0.005 to 0.
    Type: Grant
    Filed: June 23, 1982
    Date of Patent: September 20, 1983
    Assignees: Institut Problem Litya Akademii Nauk Ukrainskoi SSR, Otdelnoe Konstruktorskoe Bjuro Besshtangovykh Nassosov
    Inventors: Anatoly A. Sheiko, Mikhail V. Voloschenko, Vladimir P. Latenko, Gennady R. Kartashevsky, Evgeny I. Schegolkov, Anatoly D. Zlatkis, Viktor G. Osokin, Lev V. Polyakov, Valentin V. Zaitsev, Mikhail B. Trunov