Patents by Inventor Gerhard Grab

Gerhard Grab 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).

  • Method of treating polyolefin plastic foams
    Patent number: 5369134
    Abstract: Described is a method of rendering antistatic and/or rendering flame-resistant and/or coloring polyolefin particle foams, in which polyolefin particles are wetted with an organic liquid, a powder composition which contains a flame-proofing agent, an antistatic agent and/or a coloring agent as well as a film-forming agent is added with mixing and the resulting mixture is sintered in per se known manner.
    Type: Grant
    Filed: October 22, 1993
    Date of Patent: November 29, 1994
    Assignee: Hein-Farben GmbH
    Inventors: Gerhard Grab, Dieter Jacob