Patents by Inventor Donald R. Therrien

Donald R. Therrien 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).

  • Orthodontic harness
    Patent number: D255931
    Type: Grant
    Filed: December 12, 1977
    Date of Patent: July 15, 1980
    Inventor: Donald R. Therrien
  • Orthodontic harness
    Patent number: D267425
    Type: Grant
    Filed: October 31, 1979
    Date of Patent: December 28, 1982
    Assignee: Masel Orthodontics, Inc.
    Inventor: Donald R. Therrien
  • Orthodontic harness
    Patent number: D267426
    Type: Grant
    Filed: October 31, 1979
    Date of Patent: December 28, 1982
    Assignee: Masel Orthodontics, Inc.
    Inventor: Donald R. Therrien