Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5384346 | Polyvinyl butyrals having improved thermal stability and light resistance | Matthas Gutweiler, Gerhard Pfahler, Hermann Schindler | 1995-01-24 |
| 4751266 | Polyvinylbutyral of reduced tackiness and improved tensile strength | Hans D. Hermann, Klaus Fabian | 1988-06-14 |
| 4499236 | Finely divided polyvinyl acetals, a process for their preparation, and their use in baked coatings | Hans D. Hermann | 1985-02-12 |
| 4205146 | Process for the preparation of polyvinylbutyral having improved properties | Hans D. Hermann, Joachim Ebigt | 1980-05-27 |