Compagnie Generale de Geophysique
79Patents
2Active
79Granted
35Portfolio score
Filing activity: Dec 2, 1974 → Apr 19, 2006 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4713775A | Intelligent assistant for using and operating computer system capabilities to solve problems | Emerging Cross-Sectional Technologies | 230 | Expired |
| US5465323A | Method for modelling a surface and device for implementing same | Physics | 87 | Expired |
| US5191341A | System for sea navigation or traffic control/assistance | Physics | 85 | Expired |
| US7373251B2 | Method for predicting quantitative values of a rock or fluid property in a reservoir using seismic data | Physics | 73 | Expired |
| US6714867B2 | Method for seismic monitoring of an underground zone by simultaneous use of sererval vibroseismic sources | Physics | 70 | Expired |
| US5248857A | Apparatus for the acquisition of a seismic signal transmitted by a rotating drill bit | Emerging Cross-Sectional Technologies | 51 | Expired |
| US4636956A | Method and device for optimization of seismic data | Physics | 35 | Expired |
| US4417210A | Method of geophysical prospection using transient currents | Physics | 33 | Expired |
| US4914636A | Method and device for acquisition of seismic data | Physics | 33 | Expired |
| US5184329A | Method and device for optimizing the triggering of an array of marine seismic sources | Physics | 29 | Expired |
| US4258322A | Electromagnetic subsoil prospecting process using an asymptotic low frequency range | Physics | 28 | Expired |
| US4986350A | Device for the seismic monitoring of an underground deposit | Physics | 25 | Expired |
| US5461594A | Method of acquiring and processing seismic data recorded on receivers disposed vertically in the earth to monitor the displacement of fluids in a reservoir | Physics | 23 | Expired |
| US5319609A | Acoustic emission system for seismic surveying at sea | Physics | 21 | Expired |
| US4599713A | Seismic detector | Physics | 19 | Expired |
| US4789969A | Method of measuring the anisotropy of propagation or reflection of a transverse wave, particularly a method of geophysical prospecting by measurement of the anisotropy of propagation or of reflection of shear waves in rocks | Physics | 19 | Expired |
| US4852004A | Method and apparatus for processing seismographic data by correlation | Physics | 18 | Expired |
| US4352070A | Sample-and-hold unit | Physics | 18 | Expired |
| US5757720A | Processing method for calibrating a hydrophone-geophone sensor pair, and a seismic prospecting method implementing the processing | Physics | 17 | Expired |
| US7104728B2 | Method for deploying seafloor equipment | Physics | 17 | Expired |
| US4535293A | Method for geophysical prospecting using impulsine currents | Physics | 16 | Expired |
| US6603707B1 | Method of reducing harmonic noise in vibroseis operations | Physics | 16 | Expired |
| US5247486A | Method for determining the far-field signature of a plurality of seismic sources | Physics | 15 | Expired |
| US4398271A | Device for data transmission between seismic data acquisition devices and a recording device | Physics | 15 | Expired |
| US4644506A | Device for determining the position in the water of an elongate element towed while submerged | Physics | 14 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.