Patents by Inventor Leonhardt J. Andersen

Leonhardt J. Andersen 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).

  • Christmas tree ornament
    Patent number: D350080
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: August 30, 1994
    Inventor: Leonhardt J. Andersen
  • Christmas tree ornament
    Patent number: D380406
    Type: Grant
    Filed: August 30, 1995
    Date of Patent: July 1, 1997
    Inventor: Leonhardt J. Andersen
  • Christmas tree ornament
    Patent number: D402914
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: December 22, 1998
    Inventor: Leonhardt J. Andersen
  • Christmas tree ornament
    Patent number: D425818
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: May 30, 2000
    Inventor: Leonhardt J. Andersen