Patents by Inventor Dirk Oberlin

Dirk Oberlin 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).

  • Rubber composition and method of incorporating carbon black and a quaternary ammonium coupling agent salt into natural rubber containing compositions
    Patent number: 4602052
    Abstract: A rubber composition containing carbon black as a reinforcing filler and a quaternary ammonium salt as a coupling agent and a method of making it are disclosed.
    Type: Grant
    Filed: September 17, 1984
    Date of Patent: July 22, 1986
    Assignee: Amoco Corporation
    Inventors: Kenneth E. Weber, Dirk Oberlin
  • Rubber composition and method
    Patent number: 4598105
    Abstract: A rubber composition containing carbon black and a second particulate filler of kaolin, metakaolin, talc, pyrophyllite coal, coke, graphite or metal carbonate filler and a method of making it are disclosed.
    Type: Grant
    Filed: September 17, 1984
    Date of Patent: July 1, 1986
    Assignee: Amoco Corporation
    Inventors: Kenneth E. Weber, Dirk Oberlin