Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11187049 | Fingerboard | Erling Tambs, Kenneth Birkeland | 2021-11-30 |
| 11097929 | Top-mounted hoist for use in a derrick or drilling mast of an oil and gas rig | Dag Holen, Erling Tambs | 2021-08-24 |