Patents by Inventor John L. Zeurcher

John L. Zeurcher 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: D326999
    Type: Grant
    Filed: September 25, 1990
    Date of Patent: June 16, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Thomas P. Johnson, John L. Zeurcher, Claudio A. Grubicy