Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7766044 | Two-way damper | Timothy M. O'Shea | 2010-08-03 |
| 6152173 | Position indicating check valve | — | 2000-11-28 |
| 6050294 | Spring return check valve | — | 2000-04-18 |
| 5769429 | Seat for air valves | Robert W. Smetters | 1998-06-23 |
| 5613513 | Liquid flow control device | — | 1997-03-25 |