Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5018555 | Pre-press tube | — | 1991-05-28 |
| 4678526 | Method and apparatus for forming drain pipes | — | 1987-07-07 |
| 4544435 | Heatable winding drum construction for use in manufacturing plastic tubes and receptacles | — | 1985-10-01 |
| 4513605 | Method and device for testing welds of thermoplastic parts | — | 1985-04-30 |
| 4510004 | Apparatus and method for producing a tube from a continuous formed extruded supporting material and a profiled material | — | 1985-04-09 |
| 4466854 | Method and device for producing a helically wound tube | — | 1984-08-21 |
| 4420037 | Device for cooling and calibrating helical thermoplastic tube ribs | — | 1983-12-13 |