Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8391721 | Method and apparatus for remote communication using the interpretation of thermoluminescence or photoluminescence signals | — | 2013-03-05 |
| 8374509 | Product, method and equipment for remote communication using chromogenic materials | — | 2013-02-12 |
| 5233866 | Apparatus and method for accurately measuring formation pressures | — | 1993-08-10 |
| 5184508 | Method for determining formation pressure | — | 1993-02-09 |
| 5159569 | Formation evaluation from thermal properties | Hui Xu | 1992-10-27 |
| 5148705 | Method and apparatus for determining the wettability of an earth formation | — | 1992-09-22 |
| 5142471 | Method for determining the pressure or stress of a geological formation from acoustic measurement | — | 1992-08-25 |
| 5138877 | Method and apparatus for intersecting a blowout well from a relief well | — | 1992-08-18 |
| 5103178 | Method using a pluraliyt of electrode, including a reference electrode, for recording a spontaneous potential curve in a borehole while drilling | — | 1992-04-07 |
| 5095745 | Method and apparatus for testing subsurface formations | — | 1992-03-17 |
| 5056595 | Wireline formation test tool with jet perforator for positively establishing fluidic communication with subsurface formation to be tested | — | 1991-10-15 |
| 4495605 | Method for determining the dip angle of geological formations traversed by a borehole | Guy Norel | 1985-01-22 |
| 4412180 | Method and device with adjustable focusing for measuring the electric resistivity of geological formations | — | 1983-10-25 |
| 4378051 | Driving device for displacing an element in a conduit filled with liquid | Henri Cholet, Guy Norel | 1983-03-29 |
| 4294318 | Device for measuring the stresses applied in use to the downhole assembly of a drill pipe | Pierre Grolet | 1981-10-13 |
| 4289025 | Sonde with rotatable pad for carrying out logging measurements in a borehole | Guy Norel | 1981-09-15 |
| 4208731 | Method and device for determining the geometrical outline of the underwater part of icebergs and the draught thereof | — | 1980-06-17 |