Total Compagnie Francaise des Petroles
31Patents
0Active
31Granted
36Portfolio score
Filing activity: Aug 16, 1985 → Feb 7, 1992
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5465323A | Method for modelling a surface and device for implementing same | Physics | 87 | Expired |
| US4859196A | Underwater electric connector | Electricity | 43 | Expired |
| US5207832A | Lightened cement grout suitable for the cementation of hydrocarbon production wells | Emerging Cross-Sectional Technologies | 32 | Expired |
| US4986350A | Device for the seismic monitoring of an underground deposit | Physics | 25 | Expired |
| US4699350A | Valve and a process for removing a closure member of the valve | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5052219A | Procedure and cell for measuring coefficients of adhesion and friction of a drilling fluid | Physics | 21 | Expired |
| US5255716A | Pipe rectifier for stabilizing fluid flow | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4702837A | Rotary vortex separator for a heterogeneous liquid | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4681634A | Composition cimentaire hydraulique a prise retardee pour cimentation a hautes temperature et pression | Chemistry; Metallurgy | 19 | Expired |
| US4784525A | Apparatus for use in installing a piece of equipment horizontally on a submerged unit and for removing it therefrom | Performing Operations; Transporting | 18 | Expired |
| US4638984A | External apparatus for butt welding two pipes | Performing Operations; Transporting | 17 | Expired |
| US4839239A | Metallic coating on an inorganic substrate | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4790768A | Immersible electrical coupling | Electricity | 12 | Expired |
| US4633708A | Consistometer container for testing rheologically evolutive material | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4648544A | Internal chuck for butt welding two tubes | Performing Operations; Transporting | 9 | Expired |
| US4736624A | Consistometer for analysis of rheological change | Physics | 9 | Expired |
| US4823891A | Stabilizer sleeve for drill string | Fixed Constructions | 9 | Expired |
| US4824445A | Method for recycling in a crude oil stabilization installation, which improves the production of liquefied petroleum gas coming from the associated gases | Chemistry; Metallurgy | 9 | Expired |
| US4651827A | Hydraulically controlled safety valves for incorporation in production tubes of hydrocarbon production wells | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4648268A | Method of defining homogeneous rock formation zones along a borehole on the basis of logs | Physics | 7 | Expired |
| US4877452A | Compound cement, more particularly usable in bore holes | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5247828A | Procedure and device for measurement of the gelling of paraffinic petroleum products, especially crude products | Physics | 6 | Expired |
| US4726422A | Annular safety assembly for an oil well, especially a double production zone well | Fixed Constructions | 5 | Expired |
| US4852667A | Pressure relief process for well-drilling | Fixed Constructions | 5 | Expired |
| US5095466A | Marine seismic prospecting | Physics | 5 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.