Electric Patents (Class D23/417)
  • Heating element
    Patent number: D452560
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: December 25, 2001
    Assignee: Kanthal AB
    Inventors: Jan Andersson, Helena Johansson, Lars-Göran Johansson, Mats Sundberg
  • Heating element
    Patent number: D452561
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: December 25, 2001
    Assignee: Kanthal AB
    Inventors: Jan Andersson, Helena Johansson, Lars-Göran Johansson, Mats Sundberg
  • High-frequency heating coil for metal workpieces
    Patent number: D459797
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: July 2, 2002
    Assignee: Fuji Electronics Industry Co., Ltd.
    Inventor: Hiyoshi Watanabe
  • Electric heater element for use in a radiant heater for a glass ceramic hob
    Patent number: D312126
    Type: Grant
    Filed: August 10, 1988
    Date of Patent: November 13, 1990
    Assignee: Redring Electric Limited
    Inventors: Alan W. Welsh, Trevor W. Cheetham
  • Electric heater element for use in a radiant heater for a glass ceramic hob
    Patent number: D312127
    Type: Grant
    Filed: August 10, 1988
    Date of Patent: November 13, 1990
    Assignee: Redring Electric Limited
    Inventors: Alan W. Welsh, Trevor W. Cheetham
  • Electric heater element for use in a radiant heater for a glass ceramic hob
    Patent number: D313072
    Type: Grant
    Filed: August 10, 1988
    Date of Patent: December 18, 1990
    Assignee: Redring Electric Limited
    Inventors: Alan W. Welsh, Trevor W. Cheetham
  • Infra-red heater
    Patent number: D313466
    Type: Grant
    Filed: August 16, 1988
    Date of Patent: January 1, 1991
    Assignee: Micropore International Ltd.
    Inventor: Joseph A. McWilliams
  • Radiant stove heater
    Patent number: D323385
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: January 21, 1992
    Assignee: Ceramaspeed Limited
    Inventors: George A. Higgins, Kevin R. McWilliams
  • Sheet heating element for toilet seats
    Patent number: D675725
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: February 5, 2013
    Assignee: Goto Denshi Co., Ltd.
    Inventor: Yoshihide Goto