Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7217379 | Thermoplastic tube | Arjan Dirk van Lenthe, Jan Visscher | 2007-05-15 |
| 7069635 | Methods and devices for the production of a pipe from biaxialy oriented thermoplastic material having an integrated socket | Arjan Dirk van Lenthe, Jan Visscher, Duncan Hamilton Wormald | 2006-07-04 |
| 6726863 | Thermoplastic tube | Arjan Dirk van Lenthe, Jan Visscher | 2004-04-27 |
| 6214283 | Method for treating an extruded plastic section and extrusion installation therefor | Jan Visscher, Johan Schuurman | 2001-04-10 |
| 5948332 | Method for manufacturing biaxially oriented tubing from thermoplastic material | — | 1999-09-07 |
| 5942171 | Method for manufacturing biaxially oriented tubing from thermoplastic material | — | 1999-08-24 |
| 5911933 | Method for producing a thermoplastic tubular profile and internal cooling unit for such a method | Jan Visscher | 1999-06-15 |
| 5817270 | Method and device for manufacturing biaxially oriented tubing from thermoplastic material | Johan Schuurman, Jan Visscher | 1998-10-06 |
| 5785906 | Method and device for manufacturing biaxially oriented tubing from thermoplastic material | Johan Schuurman, Jan Visscher | 1998-07-28 |