Patents by Inventor Christian Marechal

Christian Marechal 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).

  • Patent number: 5952001
    Abstract: The present invention relates to the use of an .alpha.-tocopherol phosphate, especially in its dl or d form, or an ester thereof, of the general formula ##STR1## in which: R.sub.1 is a hydrogen atom, an alkyl radical having from 1 to 4 carbon atoms, such as the methyl or ethyl radical in particular, or an .alpha.-tocopheryl radical; and R.sub.2 is a hydrogen atom, an alkyl radical having from 1 to 4 carbon atoms, such as methyl or ethyl radical in particular, or an oxyethylene chain of the formula ##STR2## in which R.sub.3 and R.sub.4 independently are a hydrogen atom or a methyl radical and n is an integer greater than or equal to 1, or a salt thereof, for preparing a pharmaceutical, dermatological or cosmetic composition for the prevention or treatment of allergic manifestations such as skin allergy or bronchial asthma, or inflammatory manifestations, or for the prevention or treatment of the harmful effects of free radicals.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: September 14, 1999
    Assignee: LVMH Recherche
    Inventors: Alain Meybeck, Frederic Bonte, Christian Marechal
  • Patent number: 5891464
    Abstract: The present invention relates to a novel composition based on hydrated lipidic lamellar phase or on liposomes and to a cosmetic or pharmaceutical, particularly dermatological composition incorporating it. The hydrated lipidic lamellar phases or the liposomes contain at least in part a derivative of labdane, or a plant extract containing it. The invention reduces hair loss and promotes hair growth.
    Type: Grant
    Filed: April 5, 1996
    Date of Patent: April 6, 1999
    Assignee: LVMH Recherche
    Inventors: Frederic Bonte, Alain Meybeck, Christian Marechal
  • Patent number: 5656618
    Abstract: The present invention relates to the use of an .alpha.-tocopherol phosphate, especially in its dl or d form, or an ester thereof, of the general formula ##STR1## in which: R.sub.1 is a hydrogen atom, an alkyl radical having from 1 to 4 carbon atoms, such as the methyl or ethyl radical in particular, or an .alpha.-tocopheryl radical; and R.sub.2 is a hydrogen atom, an alkyl radical having from 1 to 4 carbon atoms, such as a methyl or ethyl radical in particular, or an oxyethylene chain of the formula ##STR2## in which R.sub.3 and R.sub.4 independently are a hydrogen atom or a methyl radical and n is an integer greater than or equal to 1, or a salt thereof, for preparing a pharmaceutical, dermatological or cosmetic composition for the prevention or treatment of allergic manifestations such as skin allergy or bronchial asthma, or inflammatory manifestations, or for the prevention or treatment of the harmful effects of free radicals.
    Type: Grant
    Filed: October 24, 1994
    Date of Patent: August 12, 1997
    Assignee: LVMH Recherche
    Inventors: Alain Meybeck, Frederic Bonte, Christian Marechal
  • Patent number: 5643597
    Abstract: Use of a tocopherol phosphate, other than alpha-tocopherol phosphate, especially in its dl or d form, or one of its esters having general formula (I) in which: R' is hydrogen atom, an alkyl radical having from 1 to 4 carbon atoms, such as the methyl or ethyl radical in particular, R'O is a tocopheryl radical; R" is a hydrogen atom, an alkyl radical having from 1 to 4 carbon atoms, such as the methyl or ethyl radical in particular, or R"O is an oxyethylene chain, of formula (a) in which R.sub.4 and R.sub.5 are independently a hydrogen atom or a methyl radical, and n is an integer of 1 or over; R.sub.1, R.sub.2 and R.sub.3 are independently a hydrogen atom or a methyl radical, it being understood that R.sub.1, R.sub.2 and R.sub.3 cannot simultaneously be a methyl radical. A represents the groups (b), or (c).
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: July 1, 1997
    Assignee: LVMH Recherche
    Inventors: Alain Meybeck, Marc Dumas, Frederic Bonte, Christian Marechal
  • Patent number: 5603949
    Abstract: Use of a tocopherol phosphate, other than alpha-tocopherol phosphate, especially in its dl or d form, or one of its esters having general formula (I) in which: R' is hydrogen atom, an alkyl radical having from 1 to 4 carbon atoms, such as the methyl or ethyl radical in particular, R'O is a tocopheryl radical; R" is a hydrogen atom, an alkyl radical having from 1 to 4 carbon atoms, such as the methyl or ethyl radical in particular, or R"O is an oxyethylene chain, of formula (a) in which R.sub.4 and R.sub.5 are independently a hydrogen atom or a methyl radical, and n is an integer of 1 or over; R.sub.1, R.sub.2 and R.sub.3 are independently a hydrogen atom or a methyl radical, it being understood that R.sub.1, R.sub.2 and R.sub.3 cannot simultaneously be a methyl radical. A represents the groups (b), or (c).
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: February 18, 1997
    Assignee: LVMH Recherche
    Inventors: Alain Meybeck, Marc Dumas, Frederic Bonte, Christian Marechal
  • Patent number: 5510113
    Abstract: The present invention relates to a novel composition based on hydrated lipidic lamelar phases or on liposomes and to a cosmetic or pharmaceutical, particularly dermatological composition incorporating it. The hydrated lipidic lamelar phases or the liposomes contain at least in part a derivative of labdane, or a plant extract containing it. The invention reduces hair drop and promotes regrowth of hair and also prevents gray hair from appearing and provides a treatment for gray hair.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: April 23, 1996
    Assignee: LVMH Recherche
    Inventors: Frederic Bonte, Alain Meybeck, Christian Marechal
  • Patent number: 5470579
    Abstract: A method of treating skin or hair for promoting pigmentation wherein a xanthine component, in an amount effective to promote pigmentation, is incorporated in liposomes or hydrated lipidic lamellar phases.
    Type: Grant
    Filed: April 22, 1994
    Date of Patent: November 28, 1995
    Assignee: LVMH, Recherche
    Inventors: Frederic Bonte, Marc Dumas, Alain Meybeck, Christian Marechal
  • Patent number: 5387579
    Abstract: The present invention relates to the use of an .alpha.-tocopherol phosphate, especially in its dl or d form, or an ester thereof, of the general formula ##STR1## in which: R.sub.1 is a hydrogen atom, an alkyl radical having from 1 to 4 carbon atoms, such as the methyl or ethyl radical in particular, or an .alpha.-tocopheryl radical; and R.sub.2 is a hydrogen atom, an alkyl radical having from 1 to 4 carbon atoms, such as a methyl or ethyl radical in particular, or an oxyethylene chain of the formula ##STR2## in which R.sub.3 and R.sub.4 independently are a hydrogen atom or a methyl radical and n is an integer greater than or equal to 1, or a salt thereof, for preparing a pharmaceutical, dermatological or cosmetic composition for the prevention or treatment of allergic manifestations such as skin allergy or bronchial asthma, or inflammatory manifestations, or for the prevention or treatment of the harmful effects of free radicals.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: February 7, 1995
    Assignee: Lvmh Recherche
    Inventors: Alain Meybeck, Frederic Bonte, Christian Marechal
  • Patent number: 5384126
    Abstract: The present invention relates to a novel composition based on hydrated lipidic lamelar phases or on liposomes and to a cosmetic or pharmaceutical, particularly dermatological composition incorporating it.According to the invention, the hydrated lipidic lamelar phases or the liposomes contain at least in part a derivative of labdane, or a plant extract containing it.The invention makes it possible to reduce hair drop and to promote regrowth of hair and also makes it possible to prevent gray hair from appearing or to treat gray hair.
    Type: Grant
    Filed: December 12, 1991
    Date of Patent: January 24, 1995
    Assignee: LVMH Recherche
    Inventors: Frederic Bonte, Alain Meybeck, Christian Marechal