Patents by Inventor Pavel Iosifovich Kestelman

Pavel Iosifovich Kestelman 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 producing inorganic pigments
    Patent number: 3969129
    Abstract: A method, wherein an electromagnetic field is established in which a precipitate of pigments is formed from aqueous solutions of the salts of metals in the presence of ferromagnetic solids, whereupon the precipitate is treated to obtain a finished form of pigment.
    Type: Grant
    Filed: August 18, 1975
    Date of Patent: July 13, 1976
    Inventors: Zinaida Alexandrovna Savenkova, Dmitry Danilovich Logvinenko, Karl Lazarevich Tsantker, Oleg Porfirievich Shelyakov, Alexandra Pavlovna Manzhely, Gennady Grigorievich Bobrov, Genrikh Samuilovich Ioffe, Boris Vasilievich Mironov, Pavel Iosifovich Kestelman, Galina Vasilievna Egorycheva