Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5258085 | Process for producing a layered material in sheet or membrane form from thermoplastic foam | Hans-Ulrich Breitscheidel | 1993-11-02 |
| 4615411 | Sound-insulated flow duct and process for the manufacture thereof | Hans-Ulrich Breitscheidel, Helmut Rehlen, Jurgen Roellinghoff | 1986-10-07 |
| 4380486 | Machine installation for the production of thick-walled insulating pipes of foam synthetic resin sheets | Johann Fortsch, Gustav Schweiger | 1983-04-19 |