Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7823582 | Method and apparatus for solar collector with integral stagnation temperature control | Qin Lin, Lucio C. Mesquita, David A. Valletta | 2010-11-02 |
| 7823628 | Passive back-flushing thermal energy system | — | 2010-11-02 |
| 7171972 | Passive back-flushing thermal energy system | — | 2007-02-06 |
| 7143762 | Method and apparatus for solar collector with integral stagnation temperature control | Qin Lin, Lucio C. Mesquita, David A. Valletta | 2006-12-05 |
| 6827091 | Passive back-flushing thermal energy system | — | 2004-12-07 |
| 5487206 | Door control device | Peter E. Brown | 1996-01-30 |
| 4937914 | Door control device | Peter E. Brown | 1990-07-03 |
| 4502180 | Door control device having piston assembly with separately formed rack | Peter E. Brown | 1985-03-05 |