Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8561686 | Downhole fluid communication apparatus and method | Chen Tao, Jonathan W. Brown, Christopher S. Del Campo, Stephane Briquet, Steve Ervin +1 more | 2013-10-22 |
| 8220536 | Downhole fluid communication apparatus and method | Chen Tao, Jonathan W. Brown, Christopher S. Del Campo, Stephane Briquet, Steve Ervin +1 more | 2012-07-17 |
| 7568521 | Wellbore formation evaluation system and method | Jonathan W. Brown, David Ayers | 2009-08-04 |
| 7428925 | Wellbore formation evaluation system and method | Jonathan W. Brown, David Ayers | 2008-09-30 |
| 5927402 | Down hole mud circulation for wireline tools | Walter R. Benson, Augdon John Sampa | 1999-07-27 |