Portable Patents (Class D23/332)
Air conditioner (Class D23/333)
Animal or agricultural heater (Class D23/334)
Heating element protected by grille, grid, etc. (Class D23/335)
Element (Class D23/341)
  • Hot air blower
    Patent number: D293020
    Type: Grant
    Filed: November 2, 1983
    Date of Patent: December 1, 1987
    Assignee: Steinel GmbH & Co KG
    Inventors: Heinrich W. Steinel, Jurgen Greubel
  • Oscillating heater
    Patent number: D300353
    Type: Grant
    Filed: November 6, 1986
    Date of Patent: March 21, 1989
    Assignee: Associated Mills Inc.
    Inventor: Michael S. Yurkovic
  • Wet wipe warmer
    Patent number: D301608
    Type: Grant
    Filed: May 12, 1986
    Date of Patent: June 13, 1989
    Inventors: Charles A. Ballard, Deborah W. Ballard
  • Baby wipe warmer
    Patent number: D301923
    Type: Grant
    Filed: June 22, 1987
    Date of Patent: June 27, 1989
    Inventor: Louise D. Koschuta
  • Magnetic preheater for vehicle engines or the like
    Patent number: D302461
    Type: Grant
    Filed: August 5, 1987
    Date of Patent: July 25, 1989
    Assignee: The Budd Company
    Inventor: Gordon L. Kelling
  • Space heater
    Patent number: D302462
    Type: Grant
    Filed: December 23, 1986
    Date of Patent: July 25, 1989
    Inventor: Ralph M. Pivonka
  • Towelette warmer
    Patent number: D302584
    Type: Grant
    Filed: April 21, 1986
    Date of Patent: August 1, 1989
    Inventor: Robert A. DeMars
  • Electric storage heater
    Patent number: D306342
    Type: Grant
    Filed: July 28, 1987
    Date of Patent: February 27, 1990
    Inventor: Richard J. Lane
  • Electric ambient control unit for beds or the like
    Patent number: D308245
    Type: Grant
    Filed: December 23, 1986
    Date of Patent: May 29, 1990
    Inventor: John P. Stelmak
  • Heater
    Patent number: D313271
    Type: Grant
    Filed: November 23, 1988
    Date of Patent: December 25, 1990
    Inventor: Hans U. Schade
  • Well house heater
    Patent number: D315200
    Type: Grant
    Filed: March 8, 1989
    Date of Patent: March 5, 1991
    Inventor: George P. Walker
  • Propane fired heater for defrosting frozen pipes or the like
    Patent number: D315596
    Type: Grant
    Filed: September 21, 1988
    Date of Patent: March 19, 1991
    Inventors: Del Botheras, Wayne C. Colenutt
  • Propane fired heater for defrosting frozen pipes or the like
    Patent number: D315597
    Type: Grant
    Filed: September 21, 1988
    Date of Patent: March 19, 1991
    Inventors: Del Botheras, Wayne C. Colenutt
  • Portable hot air heater
    Patent number: D317042
    Type: Grant
    Filed: May 18, 1989
    Date of Patent: May 21, 1991
    Inventor: George Hall
  • Frozen lock heater
    Patent number: D321047
    Type: Grant
    Filed: May 21, 1990
    Date of Patent: October 22, 1991
    Inventor: Cyrus Haghkar
  • Housing for a heater
    Patent number: D326317
    Type: Grant
    Filed: April 12, 1991
    Date of Patent: May 19, 1992
    Assignee: Vornado Air Circulation Systems, Inc.
    Inventors: Michael C. Coup, Glen W. Ediger, Donald J. Moore, Gary P. Israel, Neill E. Bryan
  • Low frequency heater
    Patent number: D327535
    Type: Grant
    Filed: May 4, 1990
    Date of Patent: June 30, 1992
    Assignee: Omron Corporation
    Inventor: Yutaka Kobayashi
  • Refrigerant reclamation and recycle unit
    Patent number: D337592
    Type: Grant
    Filed: December 12, 1991
    Date of Patent: July 20, 1993
    Assignee: Carrier Corporation
    Inventors: Philip Hider, Scott Ryan, Thomas E. Drago
  • Tiltable heater
    Patent number: D340765
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: October 26, 1993
    Assignee: The Rival Company
    Inventors: Michael S. Joss, Stanley T. Gresens
  • Blow heater
    Patent number: D341417
    Type: Grant
    Filed: February 1, 1993
    Date of Patent: November 16, 1993
    Assignee: Sun Star United Corporation
    Inventor: Brent J. Wortham
  • Portable electric heater fan
    Patent number: D343676
    Type: Grant
    Filed: September 9, 1992
    Date of Patent: January 25, 1994
    Assignee: Royal Sovereign Corp.
    Inventor: Ta K. Lim
  • Refrigerant recovery unit
    Patent number: D344527
    Type: Grant
    Filed: June 4, 1992
    Date of Patent: February 22, 1994
    Assignee: Carrier Corporation
    Inventors: Thomas E. Drago, Richard J. Duell, Lowell E. Paige
  • Portable electric heater
    Patent number: D346017
    Type: Grant
    Filed: September 9, 1992
    Date of Patent: April 12, 1994
    Assignee: Royal Sovereign Corp.
    Inventor: Ta K. Lim
  • Portable electrical heater
    Patent number: D347683
    Type: Grant
    Filed: March 18, 1990
    Date of Patent: June 7, 1994
    Assignee: Duracraft Corporation
    Inventors: Bernard Chiu, Jui-Shang Wang, Richard M. O'Grady
  • Convection heater
    Patent number: D348725
    Type: Grant
    Filed: October 2, 1992
    Date of Patent: July 12, 1994
    Assignee: Tatung Company of America, Inc.
    Inventor: Brent J. Wortham
  • Combined portable fan and spray bottle
    Patent number: D349954
    Type: Grant
    Filed: October 18, 1993
    Date of Patent: August 23, 1994
    Assignee: Innovative Design Enterprises
    Inventors: Gregory A. Steiner, Terry Arnieri
  • Combination hand-held fan and flashlight
    Patent number: D351901
    Type: Grant
    Filed: January 31, 1994
    Date of Patent: October 25, 1994
    Inventors: Stanley T. Boruch, Annette H. Boruch
  • Heater fan
    Patent number: D353662
    Type: Grant
    Filed: January 28, 1994
    Date of Patent: December 20, 1994
    Assignee: Patton Electric Company, Inc.
    Inventors: Noel T. Patton, Herb Pattison
  • Portable fan
    Patent number: D353885
    Type: Grant
    Filed: November 23, 1993
    Date of Patent: December 27, 1994
    Assignee: The W. B. Marvin Manufacturing Company
    Inventors: Kenneth J. Hydak, David B. Chaney
  • Portable electric fan
    Patent number: D354127
    Type: Grant
    Filed: January 3, 1994
    Date of Patent: January 3, 1995
    Assignee: Holmes Products Corp.
    Inventor: Joseph M. Cunning
  • Ceramic heater
    Patent number: D354343
    Type: Grant
    Filed: March 4, 1994
    Date of Patent: January 10, 1995
    Assignee: Holmes Products Corp.
    Inventor: Andrew M. Goldstein
  • Combined electric fan housing and stand therefor
    Patent number: D354558
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: January 17, 1995
    Assignee: Duracraft Corp.
    Inventors: Robert Marvin, Richard O'Grady
  • Combined fan and heater
    Patent number: D354803
    Type: Grant
    Filed: May 17, 1994
    Date of Patent: January 24, 1995
    Inventor: Ching-Chi Huang
  • Body warmer
    Patent number: D357528
    Type: Grant
    Filed: January 31, 1994
    Date of Patent: April 18, 1995
    Inventor: William Hsu
  • Heater fan
    Patent number: D358636
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: May 23, 1995
    Assignee: Chien Luen Industries Company, Ltd., Inc.
    Inventors: John C. Bucher, Shih T. Wu, Ta-Yao Tao, John C. Elliott
  • Portable forced-air electric heater
    Patent number: D358873
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: May 30, 1995
    Assignee: Pelko Electric Corporation
    Inventor: Kosta L. Pelonis
  • Electric fan
    Patent number: D359116
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: June 6, 1995
    Assignee: Duracraft Corp.
    Inventors: Robert Marvin, Richard O'Grady