Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5666910 | Steam generator | Paul E. George, II, Donald Anson, Kurt S. Creamer, Douglas M. Dickson, Michael Grassi +1 more | 1997-09-16 |
| 5070703 | Hybrid air conditioning system integration | — | 1991-12-10 |
| 5058394 | Hybrid air conditioning system subsystem integration | — | 1991-10-22 |
| 5056329 | Heat pump systems | — | 1991-10-15 |
| 5029449 | Heat pump booster compressor arrangement | — | 1991-07-09 |
| 5022241 | Residential hybrid air conditioning system | — | 1991-06-11 |
| 5020334 | Localized air dehumidification system | — | 1991-06-04 |
| 5009086 | Passive refrigeration fluids condition | — | 1991-04-23 |
| 4991400 | Engine driven heat pump with auxiliary generator | — | 1991-02-12 |
| 4955205 | Method of conditioning building air | — | 1990-09-11 |
| 4936111 | Crossed piston compressor with vernier offset port means | James H. Saunders | 1990-06-26 |
| 4926659 | Double effect air conditioning system | Richard N. Christensen, Anthony C. DeVuono, D. Karl Landstrom | 1990-05-22 |
| 4905479 | Hybrid air conditioning system | — | 1990-03-06 |
| 4667485 | Absorption refrigeration and heat pump system | David Alexander Ball, William T. Hanna | 1987-05-26 |
| 4567732 | Method and system for controlling the environment in a greenhouse | D. Karl Landstrom | 1986-02-04 |
| 4477396 | Countercurrent flow absorber and desorber | — | 1984-10-16 |
| 4470405 | Method and apparatus for controlling insolation in a building | D. Karl Landstrom, Sherwood G. Talbert, George Stickford, Frank E. Jakob | 1984-09-11 |
| 4441332 | Absorption refrigeration and heat pump system | — | 1984-04-10 |
| 4424688 | Power unit for absorption heat exchange system | — | 1984-01-10 |
| 4407131 | Cogeneration energy balancing system | — | 1983-10-04 |
| 4337625 | Waste heat driven absorption refrigeration process and system | — | 1982-07-06 |
| 4338268 | Open cycle thermal boosting system | William T. Hanna | 1982-07-06 |
| 4333515 | Process and system for boosting the temperature of sensible waste heat sources | William T. Hanna | 1982-06-08 |