Patents by Inventor Jens N. Knudsen

Jens N. Knudsen 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).

  • Toy building set for building tree-like models
    Patent number: 4988322
    Abstract: A toy building set for building tree-like models and comprising partly a trunk element (FIG. 2), partly a branch element. The trunk element comprises a trunk portion (2) and projecting branches (3, 4) having coupling means (5, 6) spaced from the trunk portion (2). The branch element comprises a plurality of connecting bars (7-11), at whose ends coupling bushings (12) are provided. These bushings are formed with primary and secondary coupling means (17, 18), respectively, so that the branch elements may be interconnected and connected with the trunk elements. Preferably, said bars have additional branching portions (19, 20) whose ends are provided with bushings (21, 22) similar to the coupling bushings (12).
    Type: Grant
    Filed: November 25, 1987
    Date of Patent: January 29, 1991
    Assignee: Interlego A.G.
    Inventor: Jens N. Knudsen
  • Toy branched construction element
    Patent number: D296453
    Type: Grant
    Filed: November 26, 1986
    Date of Patent: June 28, 1988
    Assignee: Interlego A.G.
    Inventor: Jens N. Knudsen
  • Externally curved toy wall element
    Patent number: D304046
    Type: Grant
    Filed: December 2, 1987
    Date of Patent: October 17, 1989
    Assignee: Interlego A.G.
    Inventor: Jens N. Knudsen
  • Bevelled toy construction element
    Patent number: D304215
    Type: Grant
    Filed: December 2, 1987
    Date of Patent: October 24, 1989
    Assignee: Interlego A.G.
    Inventor: Jens N. Knudsen
  • Internally curved toy wall element
    Patent number: D304354
    Type: Grant
    Filed: December 2, 1987
    Date of Patent: October 31, 1989
    Assignee: Interlego A.G.
    Inventor: Jens N. Knudsen
  • Toy curved wall element
    Patent number: D304470
    Type: Grant
    Filed: December 2, 1987
    Date of Patent: November 7, 1989
    Assignee: Interlego A.G.
    Inventor: Jens N. Knudsen
  • Toy caparison
    Patent number: D304484
    Type: Grant
    Filed: December 2, 1987
    Date of Patent: November 7, 1989
    Assignee: Interlego A.G.
    Inventor: Jens N. Knudsen
  • Toy building lift element
    Patent number: D305442
    Type: Grant
    Filed: May 26, 1987
    Date of Patent: January 9, 1990
    Assignee: Interlego A.G.
    Inventor: Jens N. Knudsen
  • Toy palm tree
    Patent number: D309639
    Type: Grant
    Filed: November 29, 1988
    Date of Patent: July 31, 1990
    Assignee: Interlego A.G.
    Inventor: Jens N. Knudsen
  • Toy palm leaf construction element
    Patent number: D309640
    Type: Grant
    Filed: November 29, 1988
    Date of Patent: July 31, 1990
    Assignee: Interlego A.G.
    Inventor: Jens N. Knudsen
  • Wheel for a toy car
    Patent number: D316284
    Type: Grant
    Filed: November 29, 1988
    Date of Patent: April 16, 1991
    Assignee: Interlego A.G.
    Inventor: Jens N. Knudsen
  • Toy building element
    Patent number: D324084
    Type: Grant
    Filed: November 29, 1989
    Date of Patent: February 18, 1992
    Assignee: INTERLEGO A.G.
    Inventor: Jens N. Knudsen
  • Element for a toy building set
    Patent number: D332643
    Type: Grant
    Filed: November 6, 1991
    Date of Patent: January 19, 1993
    Assignee: Interlego A.G.
    Inventor: Jens N. Knudsen
  • Element for a toy building set
    Patent number: D332645
    Type: Grant
    Filed: November 6, 1991
    Date of Patent: January 19, 1993
    Assignee: Interlego A.G.
    Inventor: Jens N. Knudsen
  • Element for a toy building set
    Patent number: D332809
    Type: Grant
    Filed: November 6, 1991
    Date of Patent: January 26, 1993
    Assignee: Interlego A.G.
    Inventor: Jens N. Knudsen
  • Element for a toy building set
    Patent number: D333853
    Type: Grant
    Filed: November 6, 1991
    Date of Patent: March 9, 1993
    Assignee: Interlego A.G.
    Inventor: Jens N. Knudsen
  • Element for a toy building set
    Patent number: D335154
    Type: Grant
    Filed: November 6, 1991
    Date of Patent: April 27, 1993
    Assignee: Interlego A.G.
    Inventor: Jens N. Knudsen
  • Element for a toy building set
    Patent number: D335156
    Type: Grant
    Filed: November 6, 1991
    Date of Patent: April 27, 1993
    Assignee: Interlego A.G.
    Inventors: Jens N. Knudsen, Daniel A. Krentz
  • Element for a toy building set
    Patent number: D335160
    Type: Grant
    Filed: November 6, 1991
    Date of Patent: April 27, 1993
    Assignee: Interlego A.G.
    Inventor: Jens N. Knudsen
  • Element for a toy building set
    Patent number: D335162
    Type: Grant
    Filed: November 6, 1991
    Date of Patent: April 27, 1993
    Assignee: Interlego A.G.
    Inventor: Jens N. Knudsen