Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5990462 | Welding collar | — | 1999-11-23 |
| 5921588 | Push-in pipe coupling | Rolf Vogel, Wolfgang Sichler | 1999-07-13 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5990462 | Welding collar | — | 1999-11-23 |
| 5921588 | Push-in pipe coupling | Rolf Vogel, Wolfgang Sichler | 1999-07-13 |