Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 10975657 | Method and apparatus for filling an annulus between casing and rock in an oil or gas well | Rick D. Watts, Dianne Tompkins, Helen Haneferd, Lars Hovda, Edvard Omdal +2 more | 2021-04-13 | $732,857,000 |
| 10508515 | Method and apparatus for filling an annulus between casing and rock in an oil or gas well | Rick D. Watts, Dianne Tompkins, Helen Haneferd, Lars Hovda, Edvard Omdal +1 more | 2019-12-17 | $204,821,000 |