Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11097929 | Top-mounted hoist for use in a derrick or drilling mast of an oil and gas rig | Erling Tambs, Rolf Gullaksen | 2021-08-24 |
DH
Dag Holen
Overall (2021): #484,202 of 548,734Top 90%
1
Patents 2021