Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5822273 | Seismic acquisition and transmission system with functions decentralization | Renate Bary | 1998-10-13 |
| 5706250 | Seismic transmission method and system utilizing concentration units | Christian Grouffal | 1998-01-06 |
| 5563847 | Seismic signal acquisition method and device | Christian Grouffal | 1996-10-08 |
| 5550787 | Seismic acquisition system with decentralized processing means | Christian Grouffal | 1996-08-27 |
| 5351244 | Seismic transmission method and device for a very low error rate | Christian Grouffal | 1994-09-27 |
| 5276655 | Method and device for simplifying the localization of a subsurface zone within the scope of a seismic exploration | Gerard Thierry, Christian Grouffal | 1994-01-04 |
| 4979152 | Device for transmitting signals by radio and cable between a central control and recording system and data acquisition devices | Gerard Thierry | 1990-12-18 |
| 4908803 | Semi-sequential transmission method and system using simultaneously several radio transmission frequencies for connecting a seismic reception assembly to a central control and recording laboratory | — | 1990-03-13 |
| 4905205 | Method for transmitting to a central recording device seismic data collected by acquisition apparatus distributed over the ground and a device for implementing same | — | 1990-02-27 |
| 4897821 | Method and device for initializing data, and particularly seismic data, acquisition apparatus | Gerard Thierry | 1990-01-30 |
| 4815044 | Seismic signal transmission system using relay radios | Bernard-Andre Deconinck, Andre Oliveres, Gerard Thierry | 1989-03-21 |
| 4715341 | Method of and device for automatically adjusting the ignition timing of a controlled ignition engine | Andre Douaud | 1987-12-29 |
| 4712199 | Process for controlling the storage of data received by a seismic recording system and a device for implementing same | Renate Bary | 1987-12-08 |
| 4628494 | Method for the remote control of signal acquisition devices by means of a narrow passband transmission channel and a device for the implementation of the method | Gerard Thierry | 1986-12-09 |
| 4583206 | Device for the sequential transmission of signals by radio or by cable, between a central control system and data acquisition apparatuses | Bernard-Andre Deconinck, Gerard Thierry | 1986-04-15 |
| 4549513 | Method for the automatic adjustment of the ignition initiation control time in an internal combustion engine | Andre Douaud | 1985-10-29 |
| 4449120 | Method for amplifying multiplexed signals through different gain amplification units for selecting an optimum gain signal and device therefore | Jacques Cretin | 1984-05-15 |
| 4285315 | Method and device for automatically adjusting the spark advance of a controlled ignition engine | Andre Douaud | 1981-08-25 |
| 4213429 | Method and device for automatically adjusting the spark advance of a controlled ignition engine | Andre Douaud | 1980-07-22 |