Patents by Inventor Vadim Stadnikov

Vadim Stadnikov 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).

  • Enzyme complex having collagenolytic activity isolated from crabs
    Patent number: 5143837
    Abstract: An enzyme complex having collenagenolytic activity, comprising a mixture of collegenolytic proteases from crabs is disclosed. The proteases of the complex have the ability to cleave bovine lens capsule collagen type IV, have molecular weights from about 23,000 to 36,000 daltons, and possess a collagenolytic activity of more than about 3.300 Mandl units/mg at a pH of 7.5. The complex is isolated in aqueous solutions without the use of organic solvents from the hepatopancreas of crabs. The crabs from which the complex can be isolated are of the paralithodes and chinocetes species of crabs.
    Type: Grant
    Filed: June 6, 1990
    Date of Patent: September 1, 1992
    Assignee: Seatec
    Inventors: Vyacheslav Sova, Alexander Strongyn, Olga Klimova, Vadim Stadnikov