Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4416723 | Method for producing sapphire tubes | Boris B. Pelts, Leonid P. Egorov, Lev M. Zatulovsky, Peter M. Chaikin, Efim A. Freiman +4 more | 1983-11-22 |
| 4325917 | Method and apparatus for producing sapphire tubes | Boris B. Pelts, Leonid P. Egorov, Lev M. Zatulovsky, Petr M. Chaikin, Efim A. Freiman +4 more | 1982-04-20 |