Patents by Inventor Marc Dumas

Marc Dumas 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: 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: 5624673
    Abstract: The invention relates to the use of an extract of prunella or at least one prunella saponin. This extract or this saponin is used for the preparation of a cosmetic or pharmaceutical and/or dermatological composition. Said composition makes it possible to regulate the renewal and differentiation of the keratinocytes and has an anti-aging activity, an anti-inflammatory activity, especially in inflammations caused by ultraviolet radiation, or an anti-allergic or anti-free-radical activity. It also enables the epidermis of normal skin to be kept in good condition, especially by maintaining the functional role of the skin, in particular as a protective barrier, and makes it possible to prevent or treat dry skin, especially ichthyotic skin, and to treat psoriasis.
    Type: Grant
    Filed: December 6, 1993
    Date of Patent: April 29, 1997
    Assignee: LYMH Recherche
    Inventors: Frederic Bonte, Alain Meybeck, Marc Dumas
  • 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: 5591437
    Abstract: A black horehound extract is used to prepare a cosmetic or pharmaceutical composition, particularly a dermatological composition, for promoting skin pigmentation, preventing or delaying the growth of grey hairs, treating pigmentary disorders, reducing triglyceride levels in fat cells, and preventing the build-up of body fat such as in cellulite. The composition may particularly be used effectively to promote skin or hair pigmentation and a reduction in the build-up of body fat such as in cellulite.
    Type: Grant
    Filed: May 16, 1995
    Date of Patent: January 7, 1997
    Assignee: L.V.M.H. Recherche
    Inventors: Frederic Bonte, Alain Meybeck, Marc Dumas
  • Patent number: 5518050
    Abstract: A pouring device for pouring lubricating oil into the oil filler neck of a conventional engine. The pouring device is adapted to prevent unwanted spilling of oil onto the exterior surface of the engine block during the pouring operation. The pouring device has a cylindrical connecting neck portion which is adapted to be threadaly mounted over the discharge aperture of a conventional lubricating oil container. The connecting neck portion extends integrally into a spout. The spout has an inlet surface. A sealing membrane is hingely connected to the connecting neck portion, adjacent the inlet surface. The sealing membrane is adapted to pivot between a closed position wherein it prevents the lubricating oil from flowing through the inlet aperture and an open position wherein the sealing membrane allows the lubrificating oil to flow through the inlet aperture. The sealing membrane is adapted to be releasably locked in its close position by a locking lip which abuts against its peripheral edge.
    Type: Grant
    Filed: July 6, 1994
    Date of Patent: May 21, 1996
    Inventor: Marc Dumas
  • Patent number: 5514374
    Abstract: A black horehound extract is used to prepare a cosmetic or pharmaceutical composition, particularly a dermatological composition, for promoting skin pigmentation, preventing or delaying the growth of grey hairs, treating pigmentary disorders, reducing triglyceride levels in fat cells, and preventing the build-up of body fat such as in cellulite. The composition may particularly be used effectively to promote skin or hair pigmentation and a reduction in the build-up of body fat such as in cellulite.
    Type: Grant
    Filed: May 27, 1994
    Date of Patent: May 7, 1996
    Assignee: L.V.M.H. Recherche
    Inventors: Frederic Bonte, Alain Meybeck, Marc Dumas
  • Patent number: 5505934
    Abstract: The invention relates to cosmetic or pharmaceutical, particularly dermatological, compositions. More particularly, the invention relates to the utilization of an extract of Coleus Esquirolii, Coleus Scutellariodes or Coleus Xanthanthus or one of the mixtures thereof for the preparation of cosmetic or pharmaceutical, particularly dermatological, composition. In particular, the invention helps to efficiently promote skin or hair pigmentation.
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: April 9, 1996
    Assignee: L.V.M.H. Recherche
    Inventors: Alain Meybeck, Frederic Bonte, Marc Dumas
  • Patent number: 5476651
    Abstract: The invention relates to the use of an extract of Cyperus, in particular Cyperus rotundus L. for the preparation of a cosmetic or pharmaceutical composition, especially dermatological composition, intended for promoting the pigmentation of the skin or hair and/or for treating pigmentation disorders.
    Type: Grant
    Filed: April 22, 1994
    Date of Patent: December 19, 1995
    Assignee: LVMH Recherche
    Inventors: Alain Meybeck, Frederic Bonte, Marc Dumas
  • 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: 5290562
    Abstract: Compositions, for example cosmetic or pharmaceutical compositions, and methods of increasing melanin formation on the skin or scalp employ liposomes including between 0.001 and 10 weight percent, with respect to the total weight of the composition, of tyrosine or a tyrosine derivative selected from the group consisting of an alkali metal salt of L-tyrosine, an alkaline earth metal salt of L-tyrosine, methyl L-tyrosinate, ethyl L-tyrosinate, and stearyl L-tyrosinate.
    Type: Grant
    Filed: November 7, 1991
    Date of Patent: March 1, 1994
    Assignee: L V M H Recherche
    Inventors: Alain Meybeck, Marc Dumas
  • Patent number: 5164182
    Abstract: A composition comprising hydrated lipidic lamellar phases of liposomes containing a mulberry component. The composition may also contain kojic acid or its salts or esters, hydroquinone, or a mixture of kojic acid or its salts or esters and hydroquinone. This composition has skin-lightening properties or anti-inflammatory activity and has pharmaceutical and cosmetic applications. A method for lightening the skin or for applying anti-inflammatory formulation to the skin by applying to the skin a composition comprising hydrated lipidic lamellar phases or liposomes containing a mulberry component.
    Type: Grant
    Filed: December 11, 1989
    Date of Patent: November 17, 1992
    Assignee: LVMH Recherche
    Inventors: Alain Meybeck, Marc Dumas