Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE46286 | Downhole mixing tool | Ruairidh Cooper | 2017-01-24 |
| 8684086 | Downhole mixing tool | Ruairidh Cooper | 2014-04-01 |
| 7143848 | Downhole tool | — | 2006-12-05 |
| 6561286 | Well bore reamer and method | Stephen L. Armell | 2003-05-13 |
| 5890540 | Downhole tool | Giancarlo Pia | 1999-04-06 |
| 5853054 | 2-Stage underreamer | Bruce McGarian | 1998-12-29 |
| 5819353 | Tool for cleaning or conditioning tubular structures such as well casings | Giancarlo Pia | 1998-10-13 |
| 4964460 | Shut-in tool | David Coull | 1990-10-23 |
| 4805448 | Downhole pressure and/or temperature gauges | — | 1989-02-21 |
| 4790381 | Centralizing devices for use in bore-holes | — | 1988-12-13 |
| 4619322 | Centralizing devices for use down-well | Andrew Scott | 1986-10-28 |
| 4438938 | Seal for incorporation in high pressure leak testing tool | — | 1984-03-27 |
| 4429566 | Piping leakage detection method and apparatus | John Misselbrook | 1984-02-07 |