Patents by Inventor Elwood E. Huntzinger

Elwood E. Huntzinger 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).

  • Cell regulators in structural foams
    Patent number: 4151333
    Abstract: Cellular structure of blown structural polyphenylene oxide resins is regulated by incorporation of certain acrylamide polymers in the molding compositions thereof. The cell regulating acrylamide polymers may be homopolymers or co-polymers of acrylamide, or of substituted acrylamides or interpolymers of such acrylamide compounds with compounds containing a vinyl group.
    Type: Grant
    Filed: August 1, 1977
    Date of Patent: April 24, 1979
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Gerd M. Lenke, Elwood E. Huntzinger, Dewey G. Holland