Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7201221 | Wellbores utilizing fiber optic-based sensors and operating devices | Paulo Tubel, Michael H. Johnson, John W. Harrell, Jeffrey J. Lembcke | 2007-04-10 |
| 7040390 | Wellbores utilizing fiber optic-based sensors and operating devices | Paulo Tubel, Michael H. Johnson, John W. Harrell, Jeffrey J. Lembcke | 2006-05-09 |
| 6977367 | Providing a light cell in a wellbore | Paulo Tubel, Glynn Williams, Nigel Leggett | 2005-12-20 |
| 6943340 | Method and apparatus of providing an optical fiber along a power supply line | Paulo Tubel, Glynn Williams, Nigel Leggett | 2005-09-13 |
| 6828547 | Wellbores utilizing fiber optic-based sensors and operating devices | Paulo Tubel, Glynn Williams, Michael H. Johnson, John W. Harrell, Jeffrey J. Lembcke +1 more | 2004-12-07 |
| 6787758 | Wellbores utilizing fiber optic-based sensors and operating devices | Paulo Tubel, Glynn Williams, Michael H. Johnson, John W. Harrell, Jeffrey J. Lembcke +1 more | 2004-09-07 |
| 6571046 | Protector system for fiber optic system components in subsurface applications | Mark David Hamilton | 2003-05-27 |
| 6531694 | Wellbores utilizing fiber optic-based sensors and operating devices | Paulo Tubel, Glynn Williams, Michael H. Johnson, John W. Harrell, Jeffrey J. Lembcke +1 more | 2003-03-11 |
| 6516889 | High-load big bore lock | Jeffrey J. Lembcke | 2003-02-11 |
| 6315049 | Multiple line hydraulic system flush valve and method of use | Mark David Hamilton, Nigel Leggett | 2001-11-13 |
| 6283477 | Annular chamber seal | Clifford H. Beall, Michael S. Rawson | 2001-09-04 |
| 6281489 | Monitoring of downhole parameters and tools utilizing fiber optics | Paulo Tubel, Glynn Williams, Michael H. Johnson, John W. Harrell, Jeffrey J. Lembcke +1 more | 2001-08-28 |
| 6266465 | Angled optic fiber unions and junctions for optic fiber conduits | — | 2001-07-24 |
| 6260850 | Annular chamber seal | Clifford H. Beall, Michael S. Rawson | 2001-07-17 |
| 6158714 | Adjustable orifice valve | Jeffrey J. Lembcke | 2000-12-12 |
| 5897095 | Subsurface safety valve actuation pressure amplifier | — | 1999-04-27 |
| 5799949 | Annular chamber seal | Clifford H. Beall, Michael S. Rawson | 1998-09-01 |
| 5496044 | Annular chamber seal | Clifford H. Beall, Michael S. Rawson | 1996-03-05 |