Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5237873 | Method of determining type of refrigerant | — | 1993-08-24 |
| 4982576 | Air conditioner charging station with same refrigerant return and method | Robert H. Proctor | 1991-01-08 |
| 4967567 | System and method for diagnosing the operation of air conditioner systems | Robert H. Proctor | 1990-11-06 |
| 4909042 | Air conditioner charging station with same refrigerant reclaiming and liquid refrigerant return and method | Robert H. Proctor | 1990-03-20 |