Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6277474 | Amorphous, transparently dyed plate of a crystallisable thermoplastic, process for its production and its use | Ursula Murschall, Rainer Brunow | 2001-08-21 |
| 6187422 | Amorphous transparent plate made of crystallizable thermoplastic materials | Ursula Murschall, Rainer Brunow | 2001-02-13 |
| 5032458 | Polyester film | Hermann Dallmann, Werner Schaefer, Hartmut Hensel | 1991-07-16 |
| 4909630 | Method and device for determining the change in thickness and/or orientation within a strip of optically active material | Thomas Trzebiatowski | 1990-03-20 |
| 4801640 | Polyester film having improved abrasion resistance manufactured from particle-filled polyester having nucleating agent dispersed therein | Hermann Dallmann, Werner Schaefer, Hartmut Hensel | 1989-01-31 |
| 4692026 | Process and apparatus for continuous determination of the states of anisotropy of optically active materials | Walter Valentin, Helmut Czepl | 1987-09-08 |
| 4684487 | Process for the control of process parameters in the production of stretched foils | — | 1987-08-04 |