Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5335691 | High pressure diaphragm valve | — | 1994-08-09 |
| 5253671 | High pressure diaphragm valve | — | 1993-10-19 |
| 5215286 | High pressure diaphragm valve | — | 1993-06-01 |
| 5131627 | Diaphragm valve | — | 1992-07-21 |
| 4750709 | Diaphragm valve | Gary W. Scheffel | 1988-06-14 |
| 4732363 | Diaphragm valve | Gary W. Scheffel | 1988-03-22 |
| 4684106 | Valve | Carl R. Bork, Jr., William C. Steiss, Earl D. Shufflebarger, William P. Tobbe | 1987-08-04 |
| 4671490 | Diaphragm valve | Gary W. Scheffel | 1987-06-09 |
| 4606374 | Valve | Carl R. Bork, Jr., William C. Steiss, Earl D. Shufflebarger, William P. Tobbe | 1986-08-19 |