Patents by Inventor Sergei Vladimirovich Chepigo

Sergei Vladimirovich Chepigo 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 for processing activated sludge into useful products
    Patent number: 4119495
    Abstract: A method for processing activated sludge into useful products comprises hydrolysis of activated sludge at a pH of 0.01 to 6.0 at a temperature of 50.degree. to 150.degree. C with subsequent separation of formed water-soluble protein, carbohydrate and mineral substances and vitamins, and/or alkaline extraction of the initial activated sludge at a pH of 9 to 13 at a temperature of 40.degree. to 90.degree. C with subsequent separation of proteins from the extract.The invention makes it possible to simultaneously obtain useful products and solve the problem of utilization of activated sludge formed in great excess in biological purification of effluents, thereby ensuring intensification of purification of effluents, improvement of the quality of the purified water and decrease in the pollution of the environment.
    Type: Grant
    Filed: January 21, 1977
    Date of Patent: October 10, 1978
    Inventors: Vasily Dmitrievich Belyaev, Sergei Vladimirovich Chepigo, Nina Ivanovna Korotchenko, Alexandr Nikolaevich Mezentsev, Olga Vasilievna Samokhina, Alexandra Leonidovna Krasinskaya, Vadim Nikolaevich Timkin, Yaroslav Yaroslavovich Shkop, Alexei Olegovich Colubev
  • Method for preparing ergosterol and ubiquinone-9 in a single process
    Patent number: 3965130
    Abstract: A method for simultaneous preparation of ergosterol and ubiquinone-9 in a single process, characterized in that a biolipid fraction, isolated from a biomass of yeast, for example Candida, is used in the process.This fraction is hydrolyzed with a solution of alkali in alcohol, and unsaponifiable components are then extracted. The extract is evaporated to precipitate ergosterol, while the mother liquor is passed through a chromatographic column to isolate ubiquinone-9. According to the invention, both end products are obtained in a single process.
    Type: Grant
    Filed: December 20, 1974
    Date of Patent: June 22, 1976
    Inventors: Nina Vasilievna Tarasova, Elena Abramovna Obolnikova, Alexandr Dmitrievich Gololobov, Gleb Ivanovich Samokhvalov, Sergei Vladimirovich Chepigo, Galina Ivanovna Ivanova, Vladimir Vasilievich Imshenetsky, Vera Mikhailovna Kulikova