Patents by Inventor Larry B. Swanson

Larry B. Swanson 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).

  • Surfacing unit
    Patent number: D274588
    Type: Grant
    Filed: October 9, 1980
    Date of Patent: July 10, 1984
    Inventors: Larry B. Swanson, Dan Kotler
  • Modular grid surfacing unit
    Patent number: D274948
    Type: Grant
    Filed: April 21, 1982
    Date of Patent: July 31, 1984
    Inventors: Larry B. Swanson, Dan Kotler
  • Ski edge sharpener
    Patent number: D322922
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: January 7, 1992
    Inventors: Larry B. Swanson, Robert E. Villers