Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6540955 | Process of making a socket on a pipe of thermoplastic material | William George Hutchinson | 2003-04-01 |
| 6439617 | Coupler for a pipe or hose section | Hartmut Breukelman, Johannes Spykman | 2002-08-27 |