Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4944869 | Method and installation for obtaining enriched fractions from used storage batteries | Nedyalko K. Lyakov, Georgi A. Haralampiev, Georgi S. Buyukliev, Peter Petrov, Peter V. Valchev +2 more | 1990-07-31 |