Patents per Year
Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7350771 | Gear for electrically/hydraulically and manually driven sheet winches | — | 2008-04-01 |
| 7178602 | Method and device related to a retrievable well plug | Espen Hiorth, Thomas Gunnarshaug | 2007-02-20 |
| 6234249 | Device for use with a retrievable bridge plug | Dag Pedersen | 2001-05-22 |
| 6142227 | Expandable retrievable bridge plug | Epen Hiorth, Dag Pedersen | 2000-11-07 |
| 6036174 | Dual speed winch using one-way clutches operating in opposite directions | — | 2000-03-14 |
| D292137 | Winch | — | 1987-09-29 |