Patents by Inventor M. J. El-Hibri

M. J. El-Hibri 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).

  • Poly(aryl ether sulfone) compositions comprising poly(phenylene ether sulfone)
    Patent number: 5174958
    Abstract: A poly(aryl ether sulfone) blend comprising (a) from about 25 to about 99 percent by weight of a poly(biphenyl ether sulfone) and (b) from about 1 to about 75 percent by weight of a second poly(phenylene ether sulfone).
    Type: Grant
    Filed: August 20, 1991
    Date of Patent: December 29, 1992
    Assignee: Amoco Corporation
    Inventors: Barry L. Dickinson, M. J. El-Hibri, Marvin E. Sauers
  • Poly(aryl ether sulfone) compositions
    Patent number: 5164466
    Abstract: A poly(aryl ether sulfone) blend comprising (a) from about 25 to about 99 percent by weight of a poly(biphenyl ether sulfone) and (b) from about 1 to about 75 percent by weight of a second poly(aryl ether sulfone) comprising bisphenol A moieties.
    Type: Grant
    Filed: April 6, 1990
    Date of Patent: November 17, 1992
    Assignee: Amoco Corporation
    Inventors: M. J. El-Hibri, Barry L. Dickinson, Marvin E. Sauers
  • Poly(aryl ether sulfone) compositions comprising poly(phenylene ether sulfone)
    Patent number: 5086130
    Abstract: A poly(aryl ether sulfone) blend comprising (a) from about 25 to about 99 percent by weight of a poly(biphenyl ether sulfone) and (b) from about 1 to about 75 percent by weight of a second poly(phenylene ether sulfone).
    Type: Grant
    Filed: April 6, 1990
    Date of Patent: February 4, 1992
    Assignee: Amoco Corporation
    Inventors: Barry L. Dickinson, M. J. El-Hibri, Marvin E. Sauers