Patents by Inventor David Mendeleevich Gelfgat

David Mendeleevich Gelfgat 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).

  • Method of manufacturing film thermopile
    Patent number: 4098617
    Abstract: A method of manufacturing a film thermopile, whereby a film of a thermoelectric semiconductor material which is an n-type stoichiometric solid solution containing Bi.sub.2 Te.sub.3 and Sb.sub.2 Te.sub.3 is deposited on a substrate. Then heating is effected so that adjacent arms of the film are at different temperatures, some at a temperature of not above 300.degree. C, and others at a temperature of not less than 350.degree. C.
    Type: Grant
    Filed: September 23, 1975
    Date of Patent: July 4, 1978
    Inventors: Nikolai Stepanovich Lidorenko, Nikolai Vasilievich Kolomoets, Zinovy Moiseevich Dashevsky, Vladimir Isaakovich Granovsky, Elena Alexandrovna Zhemchuzhina, Lev Nikolaevich Chernousov, Igor Aronovich Shmidt, Ljudmila Alexeevna Nikolashina, David Mendeleevich Gelfgat, Igor Vladimirovich Sgibnev