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USPTO Patent Rankings Data through Dec 31, 2025
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Claude Mahieu — 45 Patents

L'L'Oreal: 35 patents #41 of 2,221Top 2%
SLSociete Anonyme Dite: L'Oreal: 8 patents #11 of 73Top 20%
LSL'Oreal S.A.: 1 patents #292 of 559Top 55%
Paris, FR: #60 of 13,709 inventorsTop 1%
Overall (All Time): #64,393 of 4,157,543Top 2%
45 Patents All Time
Claude Mahieu has been granted 45 US patents while listed as an inventor at L'Oreal. The first was granted in 1980 and the most recent in July 2001. Claude Mahieu ranks #64,393 of 4,157,543 US inventors in our database (top 1.5%). Patent records list Claude Mahieu in Paris, FR.

Issued Patents All Time

Showing 1–25 of 45 patents

Patent #TitleCo-InventorsDate
6258977 Alkyl3-oxoalkanoates Michel Philippe, Bernadette Luppi, Didier Semeria 2001-07-10
6210691 Cosmetics of lipophilic derivatives of amino deoxyalditols, cosmetic compositions containing them, and novel alkyl carbamates Didier Semeria, Daniele Cauwet, Guy Vanlebbebghe 2001-04-03
6090974 Alkyl 3-oxoalkanoate and process for the preparation thereof Michel Philippe, Bernadette Luppi, Didier Semeria 2000-07-18
6017547 Hydrofluorocarbon compounds and their use in cosmetic compositions Eric Bollens 2000-01-25
6001376 Lipophilic derivatives of amino deoxyalditols, cosmetic compositions containing them, and novel alkyl carbamates Didier Semeria, Daniele Cauwet, Guy Vanlebberghe 1999-12-14
5959127 Ceramides, process for their preparation and their applications in cosmetics and in dermopharmacy Didier Semeria, Michel Philippe 1999-09-28
5905165 Alkyl N-(hydroxyalkyl) carbamates and their application in cosmetics, more particularly in hair compositions Eric Bollens, Daniele Cauwet-Martin 1999-05-18
5849308 Method of providing surfactant properties to a cosmetic or pharmaceutical composition using alkyl N-(hydroxyalkyl) carbamates Jean-Marc Ascione, Eric Bollens, Michel Philippe, Isabelle Rollat-Corvol 1998-12-15
5833997 Fluorinated hydrocarbon compounds, their use in cosmetic compositions, method of preparing them and cosmetic compositions containing them Eric Bollens, Myriam Mellul 1998-11-10
5788992 Alkyl N-(hydroxyalkyl) carbamates and their application in cosmetics, more particularly in hair compositions Eric Bollens, Daniele Cauwet-Martin 1998-08-04
5753240 Fluorinated compounds and compositions comprising them Eric Bollens, Michel Philippe 1998-05-19
5705165 Cosmetic compositions containing hydrofluorocarbon compounds Eric Bollens 1998-01-06
5705148 Use of hydro- and fluorocarbon compounds in cosmetic compositions; hydro- and fluorocarbon compounds; and cosmetic compositions containing these compounds Eric Bollens 1998-01-06
5665778 Ceramides, process for their preparation and their applications in cosmetics and in dermopharmacy Didier Semeria, Michel Philippe 1997-09-09
5665699 Use of ceramides as thickeners Michel Philippe, Didier Semeria, Alain Ribier 1997-09-09
5659047 Polyfluoroalkylthiopoly (ethylimidazolium) compounds, preparation process and their use as biocidal agents Guy Vanlerberghe, Eric Bollens, Henri Sebag 1997-08-19
5616746 Use in cosmetics of lipophilic derivatives of amino deoxyalditols, cosmetic compositions containing them, and novel alkyl carbamates Didier Semeria, Dani ele Cauwet, Guy Vanlerberghe 1997-04-01
5591449 Vesicles, and cosmetic or pharmaceutical compositions containing vesicles, bounded by one or more lamellae composed of a lipid phase containing fluorine-containing, polyglycerolated amphilic sulphur compounds Eric Bollens 1997-01-07
5539129 Nonionic amphiphilic compounds derived from glycerol, a process for preparing them, and corresponding intermediate compounds Alexandre Zysman, Henri Sebag, Alain Ribier, Guy Vanlerberghe, Claude Berthelot 1996-07-23
5459165 Fluorine-containing, polyglycerolated amphiphilic sulphur compounds, cosmetic or pharmaceutical composition containing them, preparation process and vesicles formed Eric Bollens 1995-10-17
5389362 Cosmetic compositions for the treatment of the hair and skin contain polymer constituted essentially by repeating units of the .beta.-alanine type Christos Papantoniou 1995-02-14
5364625 Alkylthiopoly (ethylimidazolium) compounds, process for preparing them and their use as biocidal agents Henri Sebag 1994-11-15
5362494 Cosmetic, dermo-pharmaceutical or vesicle-containing composition including clycerol-derived compounds Alexandre Zysman, Henri Sebag, Alain Ribier, Guy Vanlerberghe, Claude Berthelot 1994-11-08
5354510 Use in surface-active agent solutions of aminopolyol carbamates as thickening agents and compositions containing them Guy Vanlerberghe, Jean L. Morangais 1994-10-11
5298242 Polyfluoroalkylthiopoly(ethylimidazolium) compounds, preparation process and their use as biocidal agents Guy Vanlerberghe, Eric Bollens, Henri Sebag 1994-03-29