Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4385746 | Four-way plug valve | Jerry B. Tomlin | 1983-05-31 |
| 4286625 | Four-way plug valve | Jerry B. Tomlin | 1981-09-01 |
| 4234157 | Lift-turn valve and actuator assembly | Syed S. Ali | 1980-11-18 |