Patents by Inventor Charles A. Trischman

Charles A. Trischman 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).

  • Additive-containing polyolefin beads and process for their preparation
    Patent number: 4452928
    Abstract: The invention provides an additive-containing polyolefin having an inner bead of a first polyolefin and an outer adherent coating of a second polyolefin encapsulating the additive.
    Type: Grant
    Filed: November 8, 1982
    Date of Patent: June 5, 1984
    Assignee: El Paso Polyolefins Company
    Inventors: Charles A. Trischman, Paula S. Weissberger, Robert B. Steinert