Patents by Inventor Steven J. Ising

Steven J. Ising 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).

  • Flame retardant polycyanate ester blend
    Patent number: 4931545
    Abstract: Flame retardant thermoset compositions having excellent water absorption resistance, caustic resistance, and low dielectric constants are made from blends of the dicyanate ester of 4,4'-(hexafluoroisopropylidene) bisphenol and a different polycyanate ester of a polyhydric phenol.
    Type: Grant
    Filed: May 3, 1989
    Date of Patent: June 5, 1990
    Assignee: Hi-Tek Polymers, Inc.
    Inventors: David A. Shimp, Steven J. Ising