Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853453 | Modified silicone rubber and its use as a material for optical lenses and optical lenses made from this material | Gerhard Kossmehl, Walter Neumann | 1989-08-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853453 | Modified silicone rubber and its use as a material for optical lenses and optical lenses made from this material | Gerhard Kossmehl, Walter Neumann | 1989-08-01 |