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Velizy-Villcoublay, France

Compagnie Generale Des Matieres Nucleaires

USPTO Granted Patents = 187

CIPO Patents = 1

EPO Patents = 7

Forward Citations = 1,058

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352 inventors (with patents filed for the assignee):

Gérard Bertolotti (8 out of 8 patents)

Bernard Defontaine (7 out of 7 patents)

Philippe Kerrien (6 out of 6 patents)

4. Joseph Besnier (6 out of 7 patents)

5. Daniel M Kerlau (6 out of 6 patents)

6. Jean-Paul Mardon (5 out of 13 patents)

7. Daniel Charquet (5 out of 23 patents)

8. Georges Lyaudet (5 out of 5 patents)

9. Michel Verdier (5 out of 10 patents)

10. Marc Lemaire (4 out of 35 patents)

11. Jacques Foos (4 out of 15 patents)

12. Alain Guy (4 out of 13 patents)

13. Christian Orange (4 out of 4 patents)

14. Gérard Limeuil (4 out of 4 patents)

15. Michel Marchand (4 out of 4 patents)

Core Competencies:

Nuclear Fuel Reprocessing

Vitrification Furnace

Actinide Coprecipitation

Radiation Source Mapping

Waste Treatment

Hydrogen Trapper Compound

Electromagnetic Detection

Optical Fiber Chemical Sensor

Glove Box Technology

Nuclear Reactor Control

Moisture Measurement

Chemical Reaction Under Pressure

187 patents: Sort by Forward Citations

1. 8615843 - Powered operation device for a glove box and glove box equipped with such a device (2013-12-31),

2. 8221640 - Method of dissolving the solids formed in a nuclear plant (2012-07-17),

3. 8138446 - Monitoring method and device by shadowscopy (2012-03-20),

4. 8003845 - Process for the complete combustion and oxidation of the mineral fraction of waste treated in direct incineration-vitrification apparatus (2011-08-23),

5. 7887767 - Process for reprocessing a spent nuclear fuel and of preparing a mixed uranium-plutonium oxide (2011-02-15),

6. 7881893 - Method for correcting biparametric spectra (2011-02-01),

7. 7861882 - Sealed docking device for moblie containers of various diameters (2011-01-04),

8. 7829043 - Method for coprecipitation of actinides in different oxidation states and method for preparation of mixed compounds of actinides (2010-11-09),

9. 7731870 - Purex method and its uses (2010-06-08),

10. 7730745 - Vitrification furnace with dual heating means (2010-06-08),

11. 7718010 - Method for treating a surface with a treatment gel, and treatment gel (2010-05-18),

12. 7713585 - Plugging of cracks on metal devices intended to contain radioactive acid materials (2010-05-11),

13. 7713357 - Method for treating a surface with a treatment gel and treatment gel (2010-05-11),

14. 7683329 - Method and system for determining the density and dimensional characteristics of an object and application to checking of nuclear fuel pellets during manufacturing (2010-03-23),

15. 7622090 - Method for separating uranium (VI) from actinides(IV) and/or actinides (VI) and its uses (2009-11-24),

Compagnie Generale des Matieres Nucleaires (Cogema) is a French company specializing in the production, processing, and recycling of nuclear materials. Established in 1976, Cogema is a major player in the global nuclear industry, offering a wide range of services such as uranium mining, fuel fabrication, and nuclear waste management. With its commitment to sustainable development and nuclear safety, Cogema continues to innovate and contribute to the advancement of nuclear technology worldwide.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

187 Patents

#1 in Velizy-Villcoublay

#145 in France

#4,368 in the World

Velizy-Villcoublay, France

Compagnie Generale Des Matieres Nucleaires

Forward Citations = 1,058

352 inventors:

Gérard Bertolotti (8 out of 8 patents)

Bernard Defontaine (7 out of 7 patents)

Philippe Kerrien (6 out of 6 patents)

4. Joseph Besnier (6 out of 7 patents)

5. Daniel M Kerlau (6 out of 6 patents)

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