Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4372739 | Extrusion nozzle | Ernst Friederich | 1983-02-08 |
| 4308354 | Making impact resistant polymers | Karl A. Jung, Manfred Munzer, Winfried Wunderlich | 1981-12-29 |
| 4261777 | Method and apparatus for making a film-coated synthetic resin tube | Franz Wenzel | 1981-04-14 |
| 4235834 | Method for making biaxially stretched articles of thermoplastic resin | Ernst Friederich, Karl-Heinz Schanz, Hartmut Schikowsky | 1980-11-25 |
| 4211525 | Apparatus for making stretched, hollow shaped strands having corrugated intermediate supports | — | 1980-07-08 |