Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4680376 | Process for the continuous production of high-molecular polybutyleneterephthalate | Fritz Wilhelm | 1987-07-14 |
| 4499261 | Process for the continuous production of polybutylene terephthalate of high molecular weight | Fritz Wilhelm, Klaus Mackensen, Ferdinand Finkeldei | 1985-02-12 |
| 4263425 | Process for production of polyester polymer for food packing | Hans-Jochen Rothe, Peter C. Freund, Werner Gey | 1981-04-21 |