Issued Patents All Time
Showing 51–54 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4800920 | Pinch valve | Edward M. Yusko, Jr., Terry M. Kalain, Peter C. Williams | 1989-01-31 |
| 4714235 | Constant displacement dual position cam stop assembly | Michael T. Gallagher, Peter C. Williams | 1987-12-22 |
| 4685488 | Ball valve | Susan E. Corbin, David Crozier, Peter C. Williams | 1987-08-11 |
| 4660591 | Ball valve and seat assembly | Michael T. Gallagher, Richard F. Wozniak, Peter C. Williams | 1987-04-28 |