Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5309638 | Method of producing a prestressed reinforced concrete structure | Lyubov Kots | 1994-05-10 |
| 4523993 | Precious metal recovery apparatus | — | 1985-06-18 |
| 4371436 | Precious metal recovery apparatus | — | 1983-02-01 |