Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6158466 | Four-way flow reversing valve for reversible refrigeration cycles | — | 2000-12-12 |
| 5629660 | Expansion valve for air conditioning system with proportional solenoid | Richard L. Kenyon, Ashok G. Zopey | 1997-05-13 |
| 5460349 | Expansion valve control element for air conditioning system | Chester D. Campbell, Sandra L. Harper, Virender Jain, Richard L. Kenyon, Alan Matthies +2 more | 1995-10-24 |
| 5390897 | Expansion valve for air conditioning system with proportional solenoid | Chester D. Campbell, Sandra L. Harper, Virender Jain, Richard L. Kenyon, Alan Matthies +2 more | 1995-02-21 |
| 5295656 | Expansion valve for air conditioning system with proportional solenoid | Chester D. Campbell, Sandra L. Harper, Virender Jain, Richard L. Kenyon, Alan Matthies +2 more | 1994-03-22 |
| 5252939 | Low friction solenoid actuator and valve | Kenton L. Durham | 1993-10-12 |
| 4649360 | Solenoid valve with contractible assembly ring | John E. Ellison | 1987-03-10 |
| 4244554 | Springless diaphragm valve | Joseph DiMauro, Herbert H. Kaemmer, Noel Otto | 1981-01-13 |