BC

Bernard Cheminal

AT Atochem: 12 patents #5 of 347Top 2%
ES Elf Atochem S.A.: 7 patents #24 of 505Top 5%
PK Produits Chimiques Uging Kuhlmann: 2 patents #15 of 118Top 15%
AT Atofina: 1 patents #131 of 359Top 40%
DS D'Elf Atochem S.A.: 1 patents #3 of 13Top 25%
Overall (All Time): #175,905 of 4,157,543Top 5%
24
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6639115 Process for the manufacture of difluoromethane Benoit Requieme, Sylvain Perdrieux, Eric Lacroix, Andre Lantz 2003-10-28
6395941 Process for the purification of 1,1,1,2-tetrafluoroethane Andre Lantz 2002-05-28
6242659 Process for the manufacture of difluoromethane Benoit Requieme, Sylvain Perdrieux, Eric Lacroix, Andre Lantz 2001-06-05
5932776 Process for fluorination of perchloroethylene or of pentachloroethane Eric Lacroix, Andre Lantz 1999-08-03
5880049 Regeneration of catalysts for gas phase fluorination Eric Lacroix, Benoit Requieme 1999-03-09
5731481 Process for the manufacture of 1,1,1,2-Tetrafluoroethane Eric Lacroix, Andre Lantz 1998-03-24
5705718 Process for the purification of 1,1,1,2-tetrafluoroethane Andre Lantz 1998-01-06
5616820 Process for the manufacture of 1,1,1,2-tetrafluoro-2-chloroethane and of pentafluoroethane Eric Lacroix, Andr e Lantz 1997-04-01
5523500 Mass catalysts based on chromium and nickel oxides and their application to the fluorination of halogenated hydrocarbons François Garcia, Eric Lacroix, Andre Lantz 1996-06-04
5453551 Purification of pentafluoroethane Eric Lacroix, Andre Lantz 1995-09-26
5430205 Process for the purification of 1,1,1,2-tetrafluoroethane Andre Lantz, Eric Lacroix 1995-07-04
5354928 Process for the manufacture of 1,1,1,2-tetrafluorochloroethane and of pentafluoroethane Eric Lacroix, Andre Lantz 1994-10-11
5055624 Synthesis of 1,1-dichloro-1,2,2,2-tetrafluoroethane Andre Lantz 1991-10-08
5053564 Selective hydrogenolysis of perhalogenated ethane derivatives Jean-Marie Cognion, Dominique Guillet 1991-10-01
4849555 Synthesis of 1-chloro-1, 1-difluoroethane Andre Lantz 1989-07-18
4745236 Synthesis of chloropentafluoroethane Robert Azerad, Henri Mathais 1988-05-17
4658070 Process for the synthesis of 2,2,2-trifluoroethanol Henri Mathais 1987-04-14
4647706 Process for the synthesis of 2,2,2-trifluoroethanol and 1,1,1,3,3,3-hexafluoroisopropanol Henri Mathais, Marc Thomarat 1987-03-03
4643851 Process for preparing trifluoroacetyl chloride Henri Mathais, Marc Thomarat 1987-02-17
4642386 Process for the preparation of pure hydrates of fluoral and of hexafluoroacetone from hemiacetals Henri Mathais, Marc Thomarat 1987-02-10
4579974 Catalytic process for the preparation of hexafluoroacetone Henri Mathais 1986-04-01
4579976 Catalytic process for the preparation of trifluoroacetaldehyde Henri Mathais 1986-04-01
4310697 Process for the manufacture of dimethylethylamine Paul Kiener, Aime Traversaz 1982-01-12
4248673 Process for obtaining colorless and stable isophorone Paul Kiener 1981-02-03