Patents by Inventor Gregory D. Kramer

Gregory 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: D291969
    Type: Grant
    Filed: April 29, 1985
    Date of Patent: September 22, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Gregory D. Kramer, Daniel L. Vanlanen
  • Patent number: D292266
    Type: Grant
    Filed: April 29, 1985
    Date of Patent: October 13, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Daniel L. Vanlanen, Gregory D. Kramer