| 4638765 Heat recovery system | 1987/01/01 | English | |
| 4911144 Spherical solar energy collector | 1990/01/01 | English | |
| 4915061 Fluidized bed reactor utilizing channel separators | 1990/01/01 | English | |
| 4905900 Water cannon apparatus for cleaning a tube bundle heat exchanger, boiler, condenser, or the like | 1990/01/01 | English | |
| 4911351 Method of manufacturing heat-exchanger | 1990/01/01 | English | |
| 4815531 Heat transfer enhancing device | 1989/01/01 | English | |
| 4822253 Machine installation for a heat pumping plant | 1989/01/01 | English | |
| 4815294 Gas turbine with external free-piston combustor | 1989/01/01 | English | |
| 4819446 Waste heat cooling apparatus | 1989/01/01 | English | |
| 4823739 Apparatus for control of the heat transfer produced in a fluidized bed | 1989/01/01 | English | |
| 4819445 Integrated cascade refrigeration system | 1989/01/01 | English | |
| 4819719 Enhanced evaporator surface | 1989/01/01 | English | |
| 4813474 Air conditioner apparatus with improved dehumidification control | 1989/01/01 | English | |
| 4815523 Device and process for cleaning a recirculation-type regenerative heat exchanger | 1989/01/01 | English | |
| 4815532 Stack type heat exchanger | 1989/01/01 | English | |
| 4813242 Efficient heater and air conditioner | 1989/01/01 | English | |
| 4822455 Distilling and desalination apparatus | 1989/01/01 | English | |
| 4813986 Process for the low temperature deriming of cryogenic heat exchangers | 1989/01/01 | English | |
| 4817709 Ramp wing enhanced plate fin | 1989/01/01 | English | |
| 4815535 Heat exchanger | 1989/01/01 | English | |
| 4862694 Cryogenic refrigeration apparatus | 1990/01/01 | English | |
| 4926639 Sibling cycle piston and valving method | 1991/01/01 | English | |
| 4942022 Catalytic reactor | 1991/01/01 | English | |
| 4967829 Heat exchangers rates by liquid spray impingement | 1991/01/01 | English | |
| 4841617 Method for producing heat exchanger tubes | 1990/01/01 | English | |
| 4834930 Method for the manufacture of apparatus for the transfer of heat and/or mass | 1990/01/01 | English | |
| 4936112 Gas compressors | 1991/01/01 | English | |
| 4847051 Reformer tube heat transfer device | 1990/01/01 | English | |
| 4954146 Separation of gaseous mixtures | 1991/01/01 | English | |
| 4844151 Heat exchanger apparatus | 1990/01/01 | English | |