Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4780266 | Method for detecting drilling fluid in the annulus of a cased wellbore | Richard Carl Haut, William E. Kline | 1988-10-25 | $58,054,000 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4780266 | Method for detecting drilling fluid in the annulus of a cased wellbore | Richard Carl Haut, William E. Kline | 1988-10-25 | $58,054,000 |