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Class Information
Number: 392/365
Name: Electric resistance heating devices > Heating devices (class 219 subclass 200) > Convection space heater > Forced air type > Portable
Description: Subject matter wherein the forced air heater may be lifted or carried bodily from place to place by hand.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7554063 |
Heating apparatus |
Jun. 30, 2009 |
| 7388176 |
Heating device with thin heating boards |
Jun. 17, 2008 |
| 7190887 |
Portable thermal-stratifying space heater and powerplant package |
Mar. 13, 2007 |
| 7180039 |
Heater with burnout protection |
Feb. 20, 2007 |
| 7158716 |
Portable pedestal electric heater |
Jan. 2, 2007 |
| 7013079 |
Hybrid hot air heater |
Mar. 14, 2006 |
| 6973260 |
Portable electric heater with vertical heated air outlet |
Dec. 6, 2005 |
| 6959144 |
Air heater with expansion containing electric heater arranged in stages |
Oct. 25, 2005 |
| 6907192 |
Hybrid hotair heater |
Jun. 14, 2005 |
| 6882796 |
Hybrid hot air heater |
Apr. 19, 2005 |
| 6795643 |
Hybrid hotair heater |
Sep. 21, 2004 |
| 6760543 |
Heated air circulator with uniform exhaust airflow |
Jul. 6, 2004 |
| 6674049 |
Storage drum heater |
Jan. 6, 2004 |
| 6624397 |
Electric circuit for portable heater |
Sep. 23, 2003 |
| 6610082 |
Electric fan with far infrared ray lamp |
Aug. 26, 2003 |
| 6480672 |
Flat panel heater |
Nov. 12, 2002 |
| 6466737 |
Portable electric space heater |
Oct. 15, 2002 |
| 6381407 |
Lamp heat generating apparatus |
Apr. 30, 2002 |
| 6321033 |
Tamper resistant electrical environmentally conditioning device |
Nov. 20, 2001 |
| 6289175 |
Independently operating portable radiator |
Sep. 11, 2001 |
| 6280211 |
Wall mounted heater fan with electrical outlet |
Aug. 28, 2001 |
| 6222987 |
Pizza box heater, components therefor and method |
Apr. 24, 2001 |
| 6167193 |
Portable electric heater with digital display |
Dec. 26, 2000 |
| 6141495 |
Portable flue heater to reduce or eliminate downdrafts |
Oct. 31, 2000 |
| 6091888 |
Portable environmental conditioning device with presence detector responsive shutoff |
Jul. 18, 2000 |
| 5943470 |
Low-voltage generation in mains-powered hot-air appliances having a fan motor |
Aug. 24, 1999 |
| 5889260 |
Electrical PTC heating device |
Mar. 30, 1999 |
| 5879516 |
Kugelrohr or distillation apparatus |
Mar. 9, 1999 |
| 5805767 |
Electronically-controlled heater |
Sep. 8, 1998 |
| 5787228 |
Portable vehicle articulated windshield defroster with heated air-flow and timer |
Jul. 28, 1998 |
| 5781695 |
Remote car heating system with heater remote control sensor removably attached to the rear view mirror |
Jul. 14, 1998 |
| 5641420 |
Electric heater having coil with loop that passes through aperture in support |
Jun. 24, 1997 |
| 5619612 |
Electric air heater with cage-shaped heating element comprised of resistance alloy strips and inclined guide vanes |
Apr. 8, 1997 |
| 5513296 |
Air heater with angled PTC heaters producing diverging heated airflow |
Apr. 30, 1996 |
| 5471763 |
Nozzle attachment for a hair dryer |
Dec. 5, 1995 |
| 5414794 |
Quickly-mountable securing structure for electric heating element in a heater fan |
May. 9, 1995 |
| 5377298 |
Cassette PTC semiconductor heating apparatus |
Dec. 27, 1994 |
| 5361321 |
Portable electric heater deenergized by a tip-over responsive actuator |
Nov. 1, 1994 |
| 5334818 |
Modular high density electric heating element arrangement for an air flow heater |
Aug. 2, 1994 |
| 5278936 |
Thermostatically controlled portable electric space heater with automatic temperature setback for energy saving |
Jan. 11, 1994 |
| 5259062 |
Air treatment apparatus utilizing interchangeable cartridges |
Nov. 2, 1993 |
| 5245691 |
Electric heater circuit |
Sep. 14, 1993 |
| 5243683 |
Laminar streamflow-guided hair dryer with finned PTC heating means |
Sep. 7, 1993 |
| 5239163 |
Automobile air heater utilizing PTC tablets adhesively fixed to tubular heat sinks |
Aug. 24, 1993 |
| 5239610 |
Wall mounted plug-in electric space heater with mounting clip for preventing accidental unplugging |
Aug. 24, 1993 |
| 5206476 |
Supplementary automobile duct heater |
Apr. 27, 1993 |
| 5192853 |
Heating set having positive temperatue coefficient thermistor elements adhesively connected to heat radiator devices |
Mar. 9, 1993 |
| 5174048 |
Carpet dryer |
Dec. 29, 1992 |
| 5157850 |
Sole dryer |
Oct. 27, 1992 |
| 5157757 |
Hand held hair dryer with selectively positionable baffle for varying the distribution of air from the dryer |
Oct. 20, 1992 |
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