Patents Represented by Attorney, Agent or Law Firm James M. Hunter
  • Thermosetting polyimide prepolymers
    Patent number: 5045625
    Abstract: In one embodiment this invention provides novel thermosetting aromatic polyimide prepolymers which have superior solubility and flow properties, and which can be thermally cured to heat and oxidation resistant thermoset adhesives, films, and molded products.Illustrative of a prepolymer is the dimaleimide of 2,2-bis[p,p'-(m-aminophenoxy)phenylsulfonyl(p-phenyleneoxy)-phenyl]propane .
    Type: Grant
    Filed: February 8, 1990
    Date of Patent: September 3, 1991
    Assignee: Hoechst Celanese Corp.
    Inventor: Eui W. Choe
  • Tamper proof label
    Patent number: D469471
    Type: Grant
    Filed: August 15, 2001
    Date of Patent: January 28, 2003
    Assignee: Laboratoires Merck Sharp and Dohme-Chibret
    Inventors: Alain Chaduc, Olivier Naudan