Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6234540 | Sealing arrangement | Tarlochan S. Mann | 2001-05-22 |
| 5860680 | Sealing system--anti collapse device | Rene Perratone | 1999-01-19 |
| 5720503 | Sealing sytem--anti collapse device | Rene Perratone | 1998-02-24 |
| 5630591 | Sealing element | Leendert Poldervaart | 1997-05-20 |