| Patent No. | Patent Title: |
| 4513584 | Method and apparatus for absorption refrigeration |
| 4498455 | Glazing material |
| 4481788 | Water heating system |
| 4480786 | Humidifier, vaporizer and room freshener |
| 4480446 | Method and apparatus for rehabilitating refrigerant |
| 4479605 | Heating system |
| 4478210 | Solar heating system |
| 4476921 | Insulating air sheath for buildings and the like |
| 4476851 | Windmill energy system |
| 4477020 | Ventilating and heating apparatus and heat-sensitive unit |
| 4477021 | Method and apparatus for a regulated heat transfer from a primary... |
| 4476679 | Civil engineering and construction machinery with hydraulic drive... |
| 4475687 | Device for heating and ventilating large-area vehicles |
| 4475359 | Air conditioning apparatus |
| 4474029 | Hot gas defrost pan and system |
| 4474017 | Method of assembling an anti-sweat heater in a refrigerator cabin... |
| 4474325 | Control circuit for heating system |
| 4473060 | Energy efficient heating system |
| 4473351 | Vertical feed stick wood fuel burning furnace system |
| 4471907 | Venturi pressurizer for incompressible-liquid circulating systems |
| 4471754 | Vehicle heater |
| 4471633 | Condensing unit |
| 4470265 | Refrigerant charging system |
| 4469276 | Heat recovery apparatus |
| 4467959 | Heat exchanger and vaporizer for a stove flue |
| 4467614 | Method and apparatus for removing condensate and oil particles fr... |
| 4467958 | Solar-heating system |
| 4466255 | Cooling system for electronic assembly |
| 4466256 | Ground-installed coldness storage and utilization system |
| 4466568 | Combustion type heater for automotive room heating system |
| 4462541 | Constant temperature control for a vehicle compartment heater or ... |
| 4462391 | Radiation receiver |
| 4462216 | Non-freeze drain assembly |
| 4461157 | Ground water heat pump system for low yield well |
| 4459826 | Refrigerator |
| 4459814 | Thermal energy compression system for heat pumps |
| 4459822 | Cooling suit system and heat exchanger construction |
| 4458633 | Flameless nitrogen skid unit |
| 4457295 | Warming garment for heating people |
| 4456172 | Method of and apparatus for the degasification of circulation sys... |