Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11136862 | Behind casing wash and cement | Stein Haavardstein, Lars Hovda, James C. Stevens, Dan Mueller, Brett Borland +2 more | 2021-10-05 |
| 10975657 | Method and apparatus for filling an annulus between casing and rock in an oil or gas well | Dianne Tompkins, Helen Haneferd, Lars Hovda, Edvard Omdal, Hardy Hartmann Nielsen +2 more | 2021-04-13 |