Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7124029 | Method for evaluating formation properties | Laurent Jammes, Ollivier Faivre, Emmanuel Legendre, Pascal Rothnemer, Maria Teresa Galli +2 more | 2006-10-17 |
| 6369575 | Methods and apparatuses for measuring the resistivity of drilling mud in a borehole | Pierre Eisenmann, Jan W. Smits, Ollivier Faivre | 2002-04-09 |
| 6046593 | Method/apparatus for measuring mud resistivity using a focused-electrode system | Pierre Eisenmann, Jan W. Smits, Ollivier Faivre | 2000-04-04 |
| 5754050 | Method and apparatus for measuring geometrical characteristics of a well, in particular a hydrocarbon well | Jan W. Smits | 1998-05-19 |
| 5399971 | Method and apparatus for evaluating formation resistivity using focused annular and azimuthal electrodes | Bronislaw Seeman | 1995-03-21 |
| 5268641 | Logging method and apparatus for measuring the Grondingen effect-corrected resistivity of earth formations | Dylan H. Davies | 1993-12-07 |
| 5036283 | Method and apparatus for measuring the resistivity of earth formations using anti-parallel active and passive focussing electrodes | Marie-Therese Gounot | 1991-07-30 |
| 4594552 | Logging method and apparatus for measuring earth formation resistivity as well as arm mechanism for the same | Pierre Grimaldi | 1986-06-10 |
| 4219095 | Acoustic transducer | — | 1980-08-26 |