Compagnie Francaise des Petroles

Patent Owner

Watch Compare Add to Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

  • No Technology to Display

Top Patents (by citation)

Upgrade to the Professional Level to View Top Patents for this Owner. Learn More

Recent Publications

  • No Recent Publications to Display

Recent Patents

  • No Recent Patents to Display

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4800753 Geomechanical probe for a drilling wellExpiredAug 15, 86Jan 31, 89[E21B]
4721413 Marine platformsExpiredOct 14, 81Jan 26, 88[G01M, E02D]
4706225 Process for obtaining and processing seismic data measured at an exploratory wellExpiredDec 24, 84Nov 10, 87[G01V]
4687378 Temporarily terminating laying of underwater pipe lineExpiredApr 03, 81Aug 18, 87[F16L]
4671704 Coastal installation for loading or unloading liquid at cryogenic temperatureExpiredAug 13, 85Jun 09, 87[E21D, F16L]
4646025 Magnetic probe exploration device for determining residual fossil magnetization of well hole rocksExpiredMay 08, 85Feb 24, 87[G01R, G01U]
4625795 Geomechanical probe for a drilling wellExpiredMar 25, 85Dec 02, 86[E21B]
4624281 Control valveExpiredFeb 01, 85Nov 25, 86[F16K]
4613347 Water deaeration processExpiredMay 21, 85Sep 23, 86[B01D]
4609214 Thermally insulated fluid transport lineExpiredDec 04, 84Sep 02, 86[F16L]
4606741 Process for purifying natural gasExpiredAug 09, 85Aug 19, 86[B01D]
4597446 Safety valves for wellsExpiredNov 23, 83Jul 01, 86[E21B]
4583603 Drill pipe jointExpiredJul 24, 85Apr 22, 86[E21B]
4576193 Device for working on a submerged valveExpiredMar 13, 85Mar 18, 86[F16K]
4566541 Production tubes for use in the completion of an oil wellExpiredOct 15, 84Jan 28, 86[E21B]
4561248 Hydraulic shock-absorbing jackExpiredDec 21, 83Dec 31, 85[F15B]
4560005 Sliding-sleeve valve for an oil wellExpiredDec 24, 84Dec 24, 85[E21B]
4558592 Apparatus for on-site assessment of the effectiveness of a treatment in the course of its application to a hydrocarbon wellExpiredMay 14, 84Dec 17, 85[E21B]
4553600 Safety installation for a submerged drilling well-headExpiredJan 19, 84Nov 19, 85[E21B]
4526596 Process for recovering butane and propane from crude gasExpiredOct 29, 82Jul 02, 85[F25J]

View all patents..

Top Inventors for This Owner

Upgrade to the Professional Level to View Top Inventors for this Owner. Learn More

We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to -1 comparisons!

We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.