Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9500031 | Rotary steerable drilling apparatus | Malcolm George Vie | 2016-11-22 |
| 9004194 | Downhole tractor | Alan Martyn Eddison, Derek Stuart | 2015-04-14 |
| 8167051 | Selective agitation | Alan Martyn Eddison | 2012-05-01 |
| 4964460 | Shut-in tool | Richard A. Armell | 1990-10-23 |