Patents by Inventor John L. Simonian

John L. Simonian 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).

  • Wire enamel based on amide-imide hydantoin polymers
    Patent number: RE29213
    Abstract: Amide-imide-hydantoin polymers are prepared from trimellitic anhydride, a diisocyanate and reacting the isocyanate terminated amide-imide with a glycine derivative of the formula ##STR1## WHERE R is aromatic, R.sub.1 are the same or different and are hydrogen or alkyl, R.sub.2 is dialkylamino, alkoxy or aroxy and x is an integer from 2 to 4. A portion of the trimellitic anhydride can be replaced by a dicarboxylic acid, a dianhydride or a tribasic acid. The products are soluble in cresol type solvent.
    Type: Grant
    Filed: May 6, 1975
    Date of Patent: May 10, 1977
    Assignee: Schenectady Chemicals, Inc.
    Inventors: Edmund J. Zalewski, John L. Simonian, John T. Keating