| 1 2 3 4 |
| Patent ID | Title | Date Filed |
| 6422308 | Heat pump type air conditioner for vehicle
| October 31, 1997 |
| 6367260 | Engine waste heat recovering apparatus
| October 25, 2000 |
| 6357246 | Heat pump type air conditioning apparatus
| August 9, 2000 |
| 6347527 | Integrated system for heating, cooling and heat recovery ventilation
| December 2, 1998 |
| 6289685 | Air conditioner with combustion heater for refrigerant
| April 22, 1999 |
| 6276148 | Boosted air source heat pump
| February 16, 2000 |
| 6233951 | Heating, cooling and de-humidification system for buildings
| December 17, 1998 |
| 6213405 | Supplemental heat source
| June 19, 2000 |
| 6212894 | Microprocessor control for a heat pump water heater
| March 28, 1997 |
| 6176306 | Method and device for controlling operation of heat pump
| July 1, 1997 |
| 6164367 | Automotive air conditioning apparatus
| October 8, 1997 |
| 6149066 | Method and apparatus for controlling supplemental heat in a heat pump system
| August 17, 1999 |
| 6138919 | Multi-section evaporator for use in heat pump
| September 19, 1997 |
| 6109533 | Air conditioner and refrigerant heater outlet temperature control method
| September 24, 1998 |
| 6105666 | Vehicular air conditioning apparatus
| October 30, 1997 |
| 6102114 | Multi-room air conditioning system
| September 29, 1998 |
| 6079218 | Air conditioner for vehicles
| September 23, 1997 |
| 6073690 | Heating system control unit
| August 6, 1998 |
| 6042016 | Air conditioner for vehicles
| June 3, 1997 |
| 5984198 | Heat pump apparatus for heating liquid
| June 9, 1997 |
| 5971289 | Apparatus and method for air-conditioning a vehicle
| October 1, 1997 |
| 5967411 | Method and apparatus for controlling supplemental heat in a heat pump system
| January 23, 1998 |
| 5966954 | Air conditioning system
| December 3, 1997 |
| 5947373 | Refrigerant circuit with fluid heated refrigerant
| February 5, 1997 |
| 5946927 | Heat pump water heater and storage tank assembly
| April 14, 1998 |
| 5941089 | Absorption refrigerating/heating apparatus
| December 30, 1997 |
| 5906109 | Heat pump water heater and storage tank assembly
| July 3, 1998 |
| 5906104 | Combination air conditioning system and water heater
| September 30, 1997 |
| 5878810 | Air-conditioning apparatus
| November 28, 1994 |
| 5799867 | Engine-driven heat pump apparatus and method for stable operation of heat pump
| February 8, 1996 |
| 5788149 | System for supplying consumers with heat energy, and apparatus therefor
| November 8, 1995 |
| 5772113 | Two-pipe heat pump system with isolated tank coil for domestic hot water
| September 20, 1996 |
| 5769316 | Air conditioner for vehicles
| May 13, 1997 |
| 5758820 | Heat recovery system
| January 17, 1997 |
| 5752654 | Method and apparatus for providing supplemental heating
| March 4, 1996 |
| 5740681 | Method and apparatus for controlling the temperature of air delivered to the cabin of a motor vehicle
| December 19, 1996 |
| 5727396 | Method and apparatus for cooling a prime mover for a gas-engine driven heat pump
| December 15, 1995 |
| 5704219 | Air conditioning apparatus
| July 29, 1996 |
| 5692390 | Device for controlling the temperature in the passenger compartment of a vehicle with an electric motor
| April 25, 1996 |
| 5678761 | Air conditioner for vehicles
| June 7, 1995 |
| 5678420 | Waste incineration heat conversion system
| October 24, 1995 |
| 5669228 | System for utilizing exhaust heat of stationary induction apparatus
| April 24, 1996 |
| 5647533 | Run time criteria to control indoor blower speed
| May 23, 1995 |
| 5632442 | Engine-driven heat pump apparatus and method for stable operation of heat pump
| February 8, 1996 |
| 5573182 | Heat pump hot water heater
| August 22, 1995 |
| 5558273 | Two-pipe system for refrigerant isolation
| November 10, 1994 |
| 5538072 | Method for preventing overshoot during heat pump defrost using memorized supplemental heater capacity from previous defrost cycle
| November 8, 1994 |
| 5533568 | Managing supplementary heat during defrost on heat pumps
| July 11, 1995 |
| 5522234 | Air conditioner having supplemental gas heater for outdoor coil
| March 4, 1994 |
| 5509274 | High efficiency heat pump system
| April 26, 1994 |
| 5501267 | Air conditioning apparatus for an electric vehicle using least power consumption between compressor and electric heater
| December 28, 1992 |
| 5461876 | Combined ambient-air and earth exchange heat pump system
| June 29, 1994 |
| 1 2 3 4 |