Patents by Inventor Leo C. Vining

Leo C. Vining 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).

  • Secalonic acids
    Patent number: 4424373
    Abstract: Secalonic acids having a 2,4'-linkage of the formula (I) or a 4,4'-linkage of the formula (II). ##STR1## .
    Type: Grant
    Filed: August 11, 1982
    Date of Patent: January 3, 1984
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Itsuo Kurobane, Leo C. Vining, Alister G. McInnes