Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884590 | Electric motor driven air valve | H. Kenneth Ring | 1989-12-05 |
| 4820130 | Temperature sensitive solenoid valve in a scroll compressor | Peter A. Kotlarek, Ronald W. Okoren | 1989-04-11 |