Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D271236 | Semi-automatic bailer plug | William C. Patriarca | 1983-11-01 |
| 4340006 | Semi-automatic bailer plug | William C. Patriarca | 1982-07-20 |
| 4198918 | Semi-automatic bailer plug | William C. Patriarca | 1980-04-22 |