Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6129391 | Plastic coupling for plastic pipe having a completed installation signal | — | 2000-10-10 |
| 5613518 | Device for restricting excess flow | — | 1997-03-25 |
| 5592965 | Valve stop changer | — | 1997-01-14 |
| 5090738 | Plastic coating for pipe couplings | — | 1992-02-25 |
| 4827596 | Plastic coating process for pipe couplings | — | 1989-05-09 |
| 4809949 | Plug valve | — | 1989-03-07 |