Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4725467 | Polycrystalline, translucent sintered tubes | Reinhold Gradl | 1988-02-16 |
| 4629593 | Process for producing polycrystalline, translucent sintered tubes | Reinhold Gradl | 1986-12-16 |