Patents by Inventor Andrei B. Skvirenko

Andrei B. Skvirenko 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).

  • Azo dyestuffs possessing antimicrobial properties
    Patent number: 4407748
    Abstract: Azo dyestuffs, possessing antimicrobial properties, having the formula: ##STR1## wherein X is --OCH.sub.3 or --SO.sub.3 Na, Y is ##STR2## or --SO.sub.2 CH.sub.2 CH.sub.2 OSO.sub.3 Na, A is a derivative of naphthalene containing one or more of the following groups --OH, --NH.sub.2, ##STR3## --SO.sub.3 Na. The use of the azo dyestuffs according to the present invention makes it possible to considerably simplify the process of finishing of fibrous materials. Antimicrobial properties are imparted simultaneously with the dye to both protein and cellulose fibrous materials.
    Type: Grant
    Filed: March 13, 1980
    Date of Patent: October 4, 1983
    Assignee: Tsentralny Nauchno-Issledovatelsky Institut
    Inventors: Irina N. Gorbacheva, Zinaida J. Kozinda, Elena G. Suvorova, Viktor A. Chertov, Semen I. Dvoskin, Evdokia V. Platonova, Tatyana A. Podgaevskaya, Andrei B. Skvirenko