Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6401749 | Asymmetrically loaded check valve | Shaiw-wen Tai, Jeffrey Ballini | 2002-06-11 |
| 5851004 | High pressure actuated metal seated diaphragm valve | Patrick P. Barber, Lewis L. Aldridge | 1998-12-22 |
| 5730423 | All metal diaphragm valve | Patrick P. Barber, Lewis L. Aldridge | 1998-03-24 |