Patents by Inventor Fred W. March

Fred W. March 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).

  • Ground support stake for irrigation tubing
    Patent number: D313339
    Type: Grant
    Filed: April 25, 1988
    Date of Patent: January 1, 1991
    Assignee: Rain Bird Sprinkler Manufacturing Company
    Inventors: Richard D. Brown, Bernard J. Wilson, Fred W. March