Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4783790 | Direct-current arc furnace for steelmaking | Rumen B. Radev, German I. Germanov | 1988-11-08 |
| 4462878 | Method of treating and refining liquid metal alloys by direct current electric arc heating | Peter H. Savov, Nikolay G. Bakalov, Boris Y. Drakaliiski, Vassil G. Peev, Stefan T. Bagarov +5 more | 1984-07-31 |
| 4259919 | Apparatus for coating graphite electrodes | Todor Yankov Koychev, Georgi M. Georgiev, Lyuben K. Lazov | 1981-04-07 |
| 4246023 | Method and apparatus for the refining of iron-based melts | Peter H. Savov, Vassil G. Peev, Nikola A. Lingorski | 1981-01-20 |
| 4226207 | Apparatus for applying protective coatings to graphite bodies | Ivan V. Genev, Mihail S. Konstantinov, Vassil G. Peev | 1980-10-07 |
| 4200452 | Method for the refining of iron-based melts | Peter H. Savov, Vassil G. Peev, Nikola A. Lingorski | 1980-04-29 |