Shirley; Roger D.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Shirley; Roger D..The latest application filed is for "refrigerant recovery and purification system".
- Shirley; Roger D. - West Unity OH
- Shirley; Roger D. - W. Unity OH
- Shirley; Roger D. - Unity OH
| Patent | Date |
|---|---|
| Refrigerant recovery and purification system Grant 4,938,031 - Manz , et al. * July 3, 1 | 1990-07-03 |
| Storage tank scale for a refrigerant recovery system Grant 4,878,356 - Punches , et al. November 7, 1 | 1989-11-07 |
| Refrigerant recovery and purification system Grant 4,809,520 - Manz , et al. March 7, 1 | 1989-03-07 |
| Refrigerant recovery, purification and recharging system Grant 4,805,416 - Manz , et al. February 21, 1 | 1989-02-21 |
| Refrigerant recovery and purification system Grant 4,768,347 - Manz , et al. September 6, 1 | 1988-09-06 |
| Refrigerant recovery and recharging system Grant 4,441,330 - Lower , et al. April 10, 1 | 1984-04-10 |
| Refrigerant recovery and recharging system Grant 4,364,236 - Lower , et al. December 21, 1 | 1982-12-21 |
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