Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863236 | Optical waveguide with an essentially fluorine-free polymer core and a fluorine-containing polymer jacket | Manfred Fleissner, Werner Groh, Rudolf Heumuller, Gerhard Wieners | 1989-09-05 |