Patents by Inventor Joseph E. Barbiarz

Joseph E. Barbiarz 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).

  • Arylsubstituted amidines
    Patent number: 4939300
    Abstract: Aminic orthoester derivatives of the formulae ##STR1## are effective in stabilizing organic materials against oxidative, thermal and actinic degradation.
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: July 3, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Linda A. Benjamin, Joseph E. Barbiarz, Stephen D. Pastor