Patents by Inventor Niels-Erik Heger

Niels-Erik Heger 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).

  • Solid fuel stove
    Patent number: D276457
    Type: Grant
    Filed: April 12, 1983
    Date of Patent: November 20, 1984
    Assignee: Aktieselskapet Jotul
    Inventor: Niels-Erik Heger
  • Fire-place for solid fuel
    Patent number: D284501
    Type: Grant
    Filed: May 3, 1983
    Date of Patent: July 1, 1986
    Assignee: Aksjeselskapet Jotul
    Inventor: Niels-Erik Heger
  • Fire place
    Patent number: D305928
    Type: Grant
    Filed: August 30, 1988
    Date of Patent: February 6, 1990
    Assignee: A/S Jotul
    Inventor: Niels-Erik Heger
  • Oven housing
    Patent number: D397776
    Type: Grant
    Filed: August 15, 1997
    Date of Patent: September 1, 1998
    Assignee: Jotul ASA
    Inventor: Niels-Erik Heger
  • Gas fired fireplace insert
    Patent number: D421647
    Type: Grant
    Filed: August 15, 1997
    Date of Patent: March 14, 2000
    Assignee: Jotul ASA
    Inventor: Niels-Erik Heger