Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11193332 | Slider compensated flexible shaft drilling system | Bill DuBose | 2021-12-07 |
| 8789607 | Method and apparatus for subsea wellhead encapsulation | Jean Claude Bret, Heiner P. T. Hartwich | 2014-07-29 |
| 8770316 | Method and apparatus for high pressure radial pulsed jetting of lateral passages from vertical to horizontal wellbores | — | 2014-07-08 |
| 8590618 | Method and apparatus for single run cutting of well casing and forming subsurface lateral passages from a well | — | 2013-11-26 |
| 7441595 | Method and apparatus for single-run formation of multiple lateral passages from a wellbore | — | 2008-10-28 |
| 7422059 | Fluid injection stimulated heavy oil or mineral production system | — | 2008-09-09 |
| RE33660 | Apparatus for drilling a curved borehole | — | 1991-08-13 |
| 4938299 | Flexible centralizer | — | 1990-07-03 |
| 4928767 | Method and apparatus for setting and retrieving a deflection tool | — | 1990-05-29 |
| 4880067 | Apparatus for drilling a curved borehole | — | 1989-11-14 |