Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5474107 | Fail-open solenoid actuated valve | — | 1995-12-12 |
| 5413308 | Fail-open solenoid actuated valve | — | 1995-05-09 |
| 4796857 | Metallic seal for high performance butterfly valve | Allan K. Shea | 1989-01-10 |
| 4676481 | Seal for high performance butterfly valve | — | 1987-06-30 |