Patents by Inventor Brian D. Kramer

Brian D. Kramer 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).

  • Patent number: 4675210
    Abstract: Graft copolymers are disclosed wherein maleic acid or maleic anhydride is grafted to a poly(propylene--butene) backbone. The grafts are useful materials for adhering polypropylene to other materials.
    Type: Grant
    Filed: February 20, 1986
    Date of Patent: June 23, 1987
    Assignee: Hercules Incorporated
    Inventors: Anthony B. Clayton, Brian D. Kramer
  • Patent number: 4599385
    Abstract: Graft copolymers are disclosed wherein maleic acid or maleic anhydride is grafted to a poly(propylene--butene) backbone. The grafts are useful materials for adhering polypropylene to other materials.
    Type: Grant
    Filed: October 10, 1984
    Date of Patent: July 8, 1986
    Assignee: Hercules Incorporated
    Inventors: Anthony B. Clayton, Brian D. Kramer
  • Patent number: 4038253
    Abstract: It has been found that certain polymers containing pendant diazo ester groups are photosensitive and have utility in the preparation of both lithographic and relief printing plates, as well as for etching resists for printed circuits. This is a continuation of application Ser. No. 412,218, filed Nov. 2, 1973 now abandoned.
    Type: Grant
    Filed: June 2, 1976
    Date of Patent: July 26, 1977
    Assignee: Hercules Incorporated
    Inventor: Brian D. Kramer