Patents by Inventor James P. Larson

James P. Larson 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).

  • Chemical pump
    Patent number: D319245
    Type: Grant
    Filed: January 25, 1989
    Date of Patent: August 20, 1991
    Assignee: Western Chemical Pumps Inc.
    Inventor: James P. Larson