Patents by Inventor Sergiy Kotvun

Sergiy Kotvun 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).

  • Apparatus and process for making high purity nickel
    Patent number: 8852315
    Abstract: An improved method of reducing a mixed metal oxide composition comprising oxides of nickel, cobalt, copper and iron in a hydrogen atmosphere to produce a mixture of the respective metals, the improvement wherein the atmosphere further comprises water vapor at a concentration, temperature and time to effect selective reduction of the oxides of nickel cobalt and copper relative to the iron oxide to produce the metallic mixture having a reduced ratio of metallic iron relative to metallic nickel, cobalt and copper.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: October 7, 2014
    Assignee: CVMR Corporation
    Inventors: Walter Curlook, Dimitri S. Terekhov, Sergiy Kotvun, Olujide Babatunde Olurin, Nanthakumar Victor Emmanuel