Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4570864 | Disc crusher | Ivan V. Genev, Evtim V. Genev, Boris Y. Drakaliiski, Marin P. Marinov, Kosta Y. Kirilov | 1986-02-18 |
| 4462878 | Method of treating and refining liquid metal alloys by direct current electric arc heating | Peter H. Savov, Nikolay G. Bakalov, Alexander Y. Valchev, Boris Y. Drakaliiski, Vassil G. Peev +5 more | 1984-07-31 |