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Rhone-progil

USPTO Granted Patents = 51

Forward Citations = 416

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74 inventors (with patents filed for the assignee):

Jean Berthoux (5 out of 6 patents)

Jean-Claude Daumas (4 out of 6 patents)

Max Michel (4 out of 8 patents)

4. Salomon Soussan (4 out of 4 patents)

5. Yves Correia (3 out of 27 patents)

6. Pierre Bouy (3 out of 12 patents)

7. Jean-Raymond Costes (3 out of 3 patents)

8. Ghislain Schwachhofer (3 out of 7 patents)

9. Jacques Becuwe (3 out of 3 patents)

10. Jean-Claude Strini (3 out of 3 patents)

11. Francis Fournel (3 out of 3 patents)

12. Bernard Chauvel (2 out of 19 patents)

13. Francois Meiller (2 out of 16 patents)

14. Georges Dupuy (2 out of 5 patents)

15. Jacques-Pierre Martinaud (2 out of 4 patents)

Core Competencies:

Bulk Polymerization

Vinyl Chloride

Catalysts

Phthalic Anhydride

Electrolysis Cell

Cobalt Oxide

Aromatic Amino Silanes

Hydrochloric Acid Purification

Alumina-based Bodies

Polyurethane Latex

Graft Polymers

Hydrocarbon Oxychlorination

51 patents: Sort by Forward Citations

1. 4299935 - Process for bulk polymerization (1981-11-10),

2. 4277585 - Vertical autoclave for bulk polymerization of vinyl chloride (1981-07-07),

3. 4198376 - Vertical autoclave for bulk polymerization of vinyl chloride based (1980-04-15),

4. 4141962 - Catalysts for treating gases containing sulphur compounds (1979-02-27),

5. 4124699 - Alumina-based bodies with large pores, produced by agglomeration (1978-11-07),

6. 4121978 - Method of separating chlorinated aliphatic hydrocarbons from mixtures (1978-10-24),

7. 4119645 - Method of preparing phthalic anhydride (1978-10-10),

8. 4110284 - Polyurethane latexes from sulfonate prepolymer, aqueous chain extension (1978-08-29),

9. 4104457 - Bulk polymerization of vinyl chloride to control grain size (1978-08-01),

10. 4096150 - Process for manufacture of tertiary amines (1978-06-20),

11. 4078018 - Graft polymers and compositions of high impact strength (1978-03-07),

12. 4072728 - Process for the preparation of 1,2-dichloroethane in two reaction zones (1978-02-07),

13. 4061581 - Trimethylolpropane esters useful as base lubricants for motor oils (1977-12-06),

14. 4058574 - Process for the oxychlorination of hydrocarbons with ammonium chloride (1977-11-15),

15. 4057579 - Adducts of olefins and trichloromethane phosphonic dichloride (1977-11-08),

Rhone-Progil is a leading engineering company offering innovative solutions in the fields of energy, aeronautics, and transport. With a strong focus on research and development, Rhone-Progil combines technical expertise, cutting-edge technologies, and sustainable practices to deliver high-quality solutions to its clients worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

51 Patents

#111 in Paris

#450 in France

#13,364 in the World

Rhone-progil

Forward Citations = 416

74 inventors:

Jean Berthoux (5 out of 6 patents)

Jean-Claude Daumas (4 out of 6 patents)

Max Michel (4 out of 8 patents)

4. Salomon Soussan (4 out of 4 patents)

5. Yves Correia (3 out of 27 patents)

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