Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6688409 | Friction reducing tool and method for its use in a wellbore | — | 2004-02-10 |
| 6668937 | Pipe assembly with a plurality of outlets for use in a wellbore and method for running such a pipe assembly | — | 2003-12-30 |
| 6585043 | Friction reducing tool | — | 2003-07-01 |
| 6557654 | Drill pipe having a journal formed thereon | — | 2003-05-06 |
| 6494274 | Axle, a friction reducing fitting and an axle installation method | Denis Robert Fernandes, Peter James Radich | 2002-12-17 |
| 6382333 | Friction reducing tool for oilfield drilling applications | — | 2002-05-07 |
| 6209667 | Drill string fitting | Denis Robert Fernandes | 2001-04-03 |
| 5778976 | Casing installation equipment | — | 1998-07-14 |