Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5398753 | Wireline hydraulic retrieving tool and downhole power generating assembly | Marcel Obrejanu | 1995-03-21 |
| 5228507 | Wireline hydraulic retrieving tool | Marcel Obrejanu | 1993-07-20 |
| 4235050 | Skate sharpening apparatus | James H. Hannaford, Warren L. Myrfield, Frederick N. Trofimenkoff, Joseph A. Consay, Donald M. Dobie | 1980-11-25 |