Patents by Inventor Igor Likhotvorik

Igor Likhotvorik 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).

  • Patent number: 6887999
    Abstract: A process for the preparation of dihydrocodeine by hydrogenating codeine or a salt thereof in aqueous solution in the presence of a catalytic metal and deactivating agent that decreases impurities formation.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: May 3, 2005
    Assignee: Acura Pharmaceuticals, Inc.
    Inventor: Igor Likhotvorik