Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4362440 | Tubular lost borehole closure | Otto-Ernst Glaesmann, Frank Meyer | 1982-12-07 |
| 4286482 | Device for positioning anchorage means | Hans Werner | 1981-09-01 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4362440 | Tubular lost borehole closure | Otto-Ernst Glaesmann, Frank Meyer | 1982-12-07 |
| 4286482 | Device for positioning anchorage means | Hans Werner | 1981-09-01 |