Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12203338 | Method and apparatus for cementing and cleaning a reservoir liner | Donald R. Girdler, Leif Kvarme | 2025-01-21 |
| 10851618 | Method and apparatus for cementing and cleaning a reservoir liner | Donald R. Girdler, Leif Kvarme | 2020-12-01 |