Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6892753 | Structure for converting a mechanical joint to a fusion joint | Steven Passerell, Jason Knaus | 2005-05-17 |
| 6371525 | Gas riser with free rotating plastic riser casing | Steven Passerell | 2002-04-16 |
| 6371531 | Stab-type coupling with collet having locking ribs and rotation prevention member | — | 2002-04-16 |
| 5779285 | Pipe coupling assembly | — | 1998-07-14 |