Issued Patents 2011
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8082780 | Methods and apparatus for decreasing a density of a downhole fluid | Stephane Vannuffelen | 2011-12-27 |
| 8061048 | Apparatus for azimuth measurements using gyro sensors | Tsunehiko Imamura, Akira Kamiya, Shigeru Sato, Juei Igarashi | 2011-11-22 |
| 7937223 | Downhole fluid analysis | Reinhart Ciglenec, Stephane Vannuffelen, Akira Kamiya, Steven G. Villareal | 2011-05-03 |
| 7933018 | Spectral imaging for downhole fluid characterization | Stephane Vannuffelen, Ahmed Hammami, Toru Terabayashi, Terry Sopkow, John Ratulowski +6 more | 2011-04-26 |
| 7929812 | Methods and apparatus for single fiber optical telemetry | Stephane Vannuffelen, Bruno Gayral, Soon Seong Chee, Colin Wilson | 2011-04-19 |
| 7894297 | Methods and apparatus for borehole sensing including downhole tension sensing | Les Nutt, Masahiro Kamata | 2011-02-22 |