Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5180695 | Lead oxide-free glass, particularly for use in electric lamps | Werner Weiss, Manfred Deisenhofer, Ewald Poesl | 1993-01-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5180695 | Lead oxide-free glass, particularly for use in electric lamps | Werner Weiss, Manfred Deisenhofer, Ewald Poesl | 1993-01-19 |