Patents by Inventor Claude Mahieu

Claude Mahieu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20050029404
    Abstract: System for fixing an insulation blanket (2) to a panel (1). It comprises buttons (8), loops (9) with ends twisted together, and hooks (12) that can easily accommodate the loops (9) when the blanket (2) is already laid.
    Type: Application
    Filed: September 18, 2002
    Publication date: February 10, 2005
    Inventors: Jean-Paul Hogie, Patrice Loisel, Jean-Claude Mahieu
  • Patent number: 6258977
    Abstract: An alkyl 3-oxoalkanoate, a process for preparation and use for the synthesis of fatty hydroxylated amino acids, fatty amino alcohols and ceramides.
    Type: Grant
    Filed: July 6, 1999
    Date of Patent: July 10, 2001
    Assignee: L'Oreal
    Inventors: Michel Philippe, Bernadette Luppi, Didier Semeria, Claude Mahieu
  • Patent number: 6210691
    Abstract: The invention is characterized by the use in cosmetic compositions of one or more lipophilic derivatives of amino deoxyalditols corresponding to the general formula: in which: R1 is a saturated linear C14-C40 aliphatic radical; R2 is a hydrogen atom or a linear C1-C6 alkyl radical; X is an oxygen atom or a methylene radical; and n is an integer from 1 to 5; with the proviso that when X is a methylene radical R1 contains from 19 to 39 carbon atoms. Application to the preparation of cosmetic compositions for the treatment of keratinous substances and for buccodental hygiene.
    Type: Grant
    Filed: December 1, 1998
    Date of Patent: April 3, 2001
    Assignee: L'Oreal
    Inventors: Claude Mahieu, Didier Semeria, Danièle Cauwet, Guy Vanlebbebghe
  • Patent number: 6090974
    Abstract: This invention includes an alkyl 3-oxoalkanoate, and processes for its preparation and use for the synthesis of fatty hydroxylated amino acids, fatty amino alcohols and ceramides.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: July 18, 2000
    Assignee: L'Oreal SA
    Inventors: Michel Philippe, Bernadette Luppi, Didier Semeria, Claude Mahieu
  • Patent number: 6017547
    Abstract: The present invention concerns hydrofluorocarbon compound with formula (I):R.sub.F --(CH.sub.2).sub.n --X--[C.sub.3 H.sub.5 (OH)]--(Y).sub.x --R.sub.H(I)whereC.sub.3 H.sub.5 (OH) represents the structures: ##STR1## R.sub.F represents a perfluorinated, linear or branched C.sub.4 -C.sub.20 alkyl radical or a mixture of perfluorinated, linear or branched C.sub.4 -C.sub.20 alkyl radicals;R.sub.H represents a linear or branched C.sub.23 -C.sub.36 alkyl radical or a mixture of linear or branched C.sub.23 -C.sub.36 alkyl radicals; ##STR2## It also concerns their use in cosmetic compositions and cosmetic compositions containing these compounds.
    Type: Grant
    Filed: February 10, 1997
    Date of Patent: January 25, 2000
    Assignee: L'Oreal
    Inventors: Eric Bollens, Claude Mahieu
  • Patent number: 6001376
    Abstract: Use in cosmetics of lipophilic derivatives of amino deoxyalditols, cosmetic compositions containing them, and novel alkyl carbamates.The invention is characterized by the use in cosmetic compositions of one or more lipophilic derivatives of amino deoxyalditols corresponding to the general formula: ##STR1## in which: R.sup.1 is a saturated linear C.sub.14 -C.sub.40 aliphatic radical;R.sup.2 is a hydrogen atom or a linear C.sub.1 -C.sub.6 alkyl radical;X is an oxygen atom or a methylene radical; andn is an integer from 1 to 5;with the proviso that when X is a methylene radical R.sup.1 contains from 19 to 39 carbon atoms.Application to the preparation of cosmetic compositions for the treatment of keratinous substances and for buccodental hygiene.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: December 14, 1999
    Assignee: L'Oreal
    Inventors: Claude Mahieu, Didier Semeria, Daniele Cauwet, Guy Vanlebberghe
  • Patent number: 5959127
    Abstract: The ceramides according to the invention are compounds corresponding to the formula: ##STR1## in which: R.sub.1 is a C.sub.11 to C.sub.21 alkyl or alkenyl radical; R.sub.2 is a linear or branched C.sub.1 to C.sub.29 hydroxyalkyl radical or a C.sub.7 to C.sub.29 hydroxyaralkyl radical, these compounds being in the form of a racemic mixture of the erythro and threo diastereoisomers for the aminodiol part ##STR2## in erythro:threo ratios of from 85:15 to 20:80. Application to cosmetic and dermopharmaceutical compositions.
    Type: Grant
    Filed: September 4, 1997
    Date of Patent: September 28, 1999
    Assignee: L'OREAL
    Inventors: Didier Semeria, Michel Philippe, Claude Mahieu
  • Patent number: 5905165
    Abstract: New compounds of formula (I): ##STR1## in which: R.sub.1 represents a C.sub.4 -C.sub.18 alkyl or alkylene radical, R.sub.2 represents a C.sub.2 -C.sub.16 alkyl or alkylene radical, R.sub.3 represents a hydrogen atom or a C.sub.1 -C.sub.6 alkyl radical, and A represents a non-ionic hydrophilic group, as well as a cosmetic composition containing these compounds and the use of such a cosmetic composition in hair treatment.
    Type: Grant
    Filed: January 23, 1998
    Date of Patent: May 18, 1999
    Assignee: L'Oreal
    Inventors: Claude Mahieu, Eric Bollens, Daniele Cauwet-Martin
  • Patent number: 5849308
    Abstract: The use of alkyl N-(hydroxyalkyl)carbamates in a cosmetic or pharmaceutical composition provided in the form of an aqueous lotion, a gel, an emulsion, a cream, a foam or a paste.
    Type: Grant
    Filed: September 28, 1995
    Date of Patent: December 15, 1998
    Assignee: L'Oreal
    Inventors: Jean-Marc Ascione, Eric Bollens, Claude Mahieu, Michel Philippe, Isabelle Rollat-Corvol
  • Patent number: 5833997
    Abstract: Fluorinated hydrocarbon compounds have formula (I):R.sub.F --(CH.sub.2).sub.n --X--?C.sub.3 H.sub.5 (OH)!--(Y).sub.x --R.sub.H ,in which C.sub.3 H.sub.5 (OH) represents structures (Ia) or (Ib): ##STR1## R.sub.F is a perfluorinated C.sub.4 -C.sub.20 alkyl radical or a mixture of perfluorinated C.sub.4 -C.sub.20 radicals; R.sub.H is a straight or branched C.sub.1 -C.sub.22 alkyl radical or a mixture of straight or branched C.sub.1 -C.sub.22 alkyl radicals or an aryl or aralkyl radical; n is from 0 to 4; X stands for O, S, ##STR2## x stands for 0 or 1; Y stands for O, S, (a) or (b); with the proviso that when X.dbd.S, (a) or (b), Y is not S, (a) or (b). The use of said compounds as amphiphilic compounds, the method of preparing them, and the cosmetic compositions containing them are also disclosed.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: November 10, 1998
    Assignee: L'Oreal
    Inventors: Claude Mahieu, Eric Bollens, Myriam Mellul
  • Patent number: 5788992
    Abstract: New compounds of formula (I): ##STR1## in which: R.sub.1 represents a C.sub.4 -C.sub.18 alkyl or alkylene radical, R.sub.2 represents a C.sub.2 -C.sub.16 alkyl or alkylene radical, R.sub.3 represents a hydrogen atom or a C.sub.1 -C.sub.6 alkyl radical, and A represents a non-ionic hydrophilic group, as well as a cosmetic composition containing these compounds and the use of such a cosmetic composition in hair treatment.
    Type: Grant
    Filed: February 6, 1995
    Date of Patent: August 4, 1998
    Assignee: L'Oreal
    Inventors: Claude Mahieu, Eric Bollens, Daniele Cauwet-Martin
  • Patent number: 5753240
    Abstract: The invention relates to new hydrocarbon compounds containing a fluorinated chain of formula I ##STR1## and to their process of preparation. The invention also relates to the use of these new compounds as thickening agents, in particular for non-aqueous media, such as cosmetic compositions, and to the cosmetic compositions containing them.
    Type: Grant
    Filed: September 20, 1995
    Date of Patent: May 19, 1998
    Assignee: L'Oreal
    Inventors: Eric Bollens, Claude Mahieu, Michel Philippe
  • Patent number: 5705165
    Abstract: The present invention concerns the use in a cosmetic composition of a hydrofluorocarbon compound with formula (I):R.sub.F --(CH.sub.2).sub.n --X--?C.sub.3 H.sub.5 (OH)!--Y--R.sub.H(I)whereC.sub.3 H.sub.5 (OH) represents the structures: ##STR1## R.sub.F represents a perfluorinated C.sub.4 -C.sub.20 alkyl radical or a mixture of perfluorinated C.sub.4 -C.sub.20 alkyl radicals;R.sub.H represents a linear or branched C.sub.1 -C.sub.22 alkyl radical or a mixture of linear or branched C.sub.1 -C.sub.22 alkyl radicals, an aryl radical or an aralkyl radical;n is between 0 and 4;X and Y represent ##STR2## It also concerns certain sulfoxide and sulfone compounds and cosmetic compositions including the compounds of the invention.
    Type: Grant
    Filed: March 21, 1995
    Date of Patent: January 6, 1998
    Assignee: L'Oreal
    Inventors: Eric Bollens, Claude Mahieu
  • Patent number: 5705148
    Abstract: The present invention concerns the use of hydrofluorocarbon compounds with formula (I):R.sub.F -(CH.sub.2).sub.n -X-?C.sub.3 H.sub.5 (OH)!-Y-(CH.sub.2).sub.m -R'.sub.F (I')whereC.sub.3 H.sub.5 (OH) represents the structures: ##STR1## R.sub.F and R.sub.F', which may be identical or different, represent a perfluorinated linear or branched C.sub.4 -C.sub.20 alkyl radical or a mixture of perfluorinated linear or branched C.sub.4 -C.sub.20 alkyl radicals;m and n, which may be identical or different, are 0, 1, 2, 3 or 4;X and Y, which may be identical or different, represent O or S. It also concerns certain of these compounds and cosmetic compositions containing these compounds.
    Type: Grant
    Filed: February 1, 1995
    Date of Patent: January 6, 1998
    Assignee: L'Oreal
    Inventors: Eric Bollens, Claude Mahieu
  • Patent number: 5665778
    Abstract: The ceramides according to the invention are compounds corresponding to the formula: ##STR1## in which: R.sub.1 is a C.sub.11 to C.sub.21 alkyl or alkenyl radical;R.sub.2 is a linear or branched C.sub.1 to C.sub.29 hydroxyalkyl radical or a C.sub.7 to C.sub.29 hydroxyaralkyl radical, these compounds being in the form of a racemic mixture of the erythro and threo diastereoisomers for the aminodiol part ##STR2## in erythro:threo ratios of from 85:15 to 20:80. Application to cosmetic and dermopharmaceutical compositions.
    Type: Grant
    Filed: October 12, 1994
    Date of Patent: September 9, 1997
    Assignee: L'Oreal
    Inventors: Didier Semeria, Michel Philippe, Claude Mahieu
  • Patent number: 5665699
    Abstract: The use of natural or synthetic ceramides as agents for thickening a medium, particularly a non-aqueous medium, and a thickened medium containing such a thickening agent The medium thus thickened may be used in the cosmetic, pharmaceutical, paint, varnish, lubricant, combustible, and food industries.
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: September 9, 1997
    Assignee: L'Oreal
    Inventors: Michel Philippe, Didier Semeria, Claude Mahieu, Alain Ribier, deceased
  • Patent number: 5659047
    Abstract: The invention relates to compounds of formula: ##STR1## in which: w is 0, 1 or 2;x is between 2 and 10;y is between 0 and 5;R denotes a methyl, ethyl, hydroxyethyl or benzyl radical;X.sup..crclbar. denotes an inorganic or organic anion; andn is an integer or decimal number between 1 and 15;the [C.sub.5 H.sub.6 N.sub.2 R.sup.+ ] group representing the following structures, taken as a mixture or individually: ##STR2## as well as their use as a biocidal agent or preservative.
    Type: Grant
    Filed: September 13, 1995
    Date of Patent: August 19, 1997
    Assignee: L'Oreal
    Inventors: Guy Vanlerberghe, Eric Bollens, Claude Mahieu, Henri Sebag
  • Patent number: 5616746
    Abstract: The invention is characterized by the use in cosmetic compositions of one or more lipophilic derivatives of amino deoxyalditols corresponding to the general formula: ##STR1## in which: R.sup.1 is a saturated linear C.sub.14 -C.sub.40 aliphatic radical;R.sup.2 is a hydrogen atom or a linear C.sub.1 -C.sub.6 alkyl radical;X is an oxygen atom or a methylene radical; andn is an integer from 1 to 5;with the proviso that when X is a methylene radical R.sup.1 contains from 19 to 39 carbon atoms.Application to the preparation of cosmetic compositions for the treatment of keratinous substances and for buccodental hygiene.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: April 1, 1997
    Assignee: L'Oreal
    Inventors: Claude Mahieu, Didier Semeria, Dani ele Cauwet, Guy Vanlerberghe
  • Patent number: 5591449
    Abstract: Fluorine-containing, polyglycerolated amphiphilic sulphur compounds, cosmetic or pharmaceutical composition containing them, preparation process and vesicles formed. The present invention relates to compound of formula (I)R.sub.f --(CH.sub.2 .paren close-st..sub.m --S--G.sub.n --H(1)in which:R.sub.f denotes a linear or branched C.sub.6 to C.sub.20 perfluoroalkyl radical or a mixture of linear or branched C.sub.4 to C.sub.20 perfluoroalkyl radicals;m represents 0, 1 or 2;n represents a statistical value or integer between 2 and 10; ##STR1## it being possible for each of the oxygen atoms to be linked to a hydrogen atom or to another unit G, to their use as surfactants and also to cosmetic or pharmaceutical compositions and vesicles containing them, and to a process for preparing them.
    Type: Grant
    Filed: April 14, 1995
    Date of Patent: January 7, 1997
    Assignee: L'Oreal
    Inventors: Eric Bollens, Claude Mahieu
  • Patent number: 5539129
    Type: Grant
    Filed: July 22, 1994
    Date of Patent: July 23, 1996
    Assignee: L'Oreal
    Inventors: Alexandre Zysman, Henri Sebag, Alain Ribier, Guy Vanlerberghe, Claude Mahieu, Claude Berthelot