Patents by Inventor Ratan Chaudhuri

Ratan Chaudhuri 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: 8003082
    Abstract: The present invention relates to a sunscreen capsule comprising i) at least one UV-A organic sunscreen and ii) at least one photostabilizer, furthermore it relates to a composition for topical application comprising these capsule and methods of production and use of these capsules and compositions.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: August 23, 2011
    Assignee: Merck Patent GmbH
    Inventor: Ratan Chaudhuri
  • Publication number: 20070264209
    Abstract: There is provided a water-soluble container having a self-tanning agent sealed therein, a method for using said water-soluble container to form a self-tanning formulation and self-tanning formulations obtained therefrom. Methods for using the self-tanning formulations are provided as well as kits which include more than one water-soluble container.
    Type: Application
    Filed: March 6, 2007
    Publication date: November 15, 2007
    Inventors: Ratan Chaudhuri, Francois Marchio, Zoia Lascu, Nadege Canedi
  • Publication number: 20070231285
    Abstract: A method for regulating the appearance of skin comprising topically applying to said skin a composition comprising: (a) a cosmetically or pharmaceutically acceptable carrier and about 0.05% to about 5% of an extract comprising a low molecular weight hydrolysable tannins, and mixtures thereof; (b) an effective amount of at least one additional skin care active ingredient selected from the group consisting of ant-acne actives, retinoids, ant-cellulite agents, antimicrobial actives, antifungal agents, vitamins, anti-inflammatory agents, tanning agents, allantoin, glucosamine, phytantriol, hydroxyacids, niacinamide, phytosterols, sunscreens and mixtures thereof.
    Type: Application
    Filed: February 28, 2007
    Publication date: October 4, 2007
    Inventor: Ratan Chaudhuri
  • Patent number: 7264795
    Abstract: The present invention relates to a composition having UV protection properties, charaterized in that the formulation comprises at least one encapsulated organic sunscreen and does not penetrate the skin essentially.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: September 4, 2007
    Assignee: Merck Patent Gesellschaft
    Inventors: Frank Pflücker, Hans-Jürgen Driller, Laure Vouzellaud, Francois Marchio, Hervé Guinard, Ratan Chaudhuri
  • Publication number: 20070059258
    Abstract: The present invention relates to a sunscreen capsule comprising i) at least one UV-A organic sunscreen and ii) at least one photostabilizer; furthermore it relates to a composition for topical application comprising these capsule and methods of production and use of these capsules and compositions.
    Type: Application
    Filed: May 27, 2004
    Publication date: March 15, 2007
    Inventor: Ratan Chaudhuri
  • Publication number: 20070031522
    Abstract: In an extraction process comprising extracting a raw extract from Emblica officinalis the improvement comprising conducting the extraction under conditions of time, temperature and atmosphere, to inhibit the formation of black specks and/or oligomeric and/or polymeric tannins and/or oxidation products thereof.
    Type: Application
    Filed: August 13, 2004
    Publication date: February 8, 2007
    Inventors: Ratan Chaudhuri, Germain Puccetti
  • Publication number: 20070020203
    Abstract: Skin care compositions comprising certain ratios of phyllanthus Emblica extracts, licorice extracts and niacinamide. Certain embodiments provide a synergistic response to lightening/even-toning the skin. These skin care compositions comprise skin lightening/even-toning formulations, sunscreen compositions, compositions for photoprotecting skin or reducing a stretch mark or compositions for repairing damaged skin.
    Type: Application
    Filed: July 6, 2006
    Publication date: January 25, 2007
    Inventors: Ratan Chaudhuri, Zoia Lascu, Germain Puccetti
  • Patent number: 7150876
    Abstract: The present invention relates to methods and compositions for using photostabilizer compounds for stabilizing formulation ingredients, like flavors, fragrances, colors, antioxidants, polymers, within cosmetics, personal care and household products, against degradation from sun light, heat and air oxidation resulting in improvement in storage stability, viscosity, and maintenance of color of the formulated products.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: December 19, 2006
    Assignee: Merck Patent GmbH
    Inventors: Ratan Chaudhuri, Germain Puccetti, Francois Marchio, Zoia Lascu
  • Publication number: 20060057169
    Abstract: This invention relates to an anhydrous composition comprising an antioxidant comprising over 40% by weight of hydrolysable tannins having molecular-weight of less than 1,000 and a substantially anhydrous or non-aqueous liquid vehicle functioning to disperse the antioxidant. The composition is suitable as cosmetic composition and/or therapeutic and/or prophylactic composition and/or anhydrous delivery system of cosmetic and/or pharmaceutical ingredients. The invention further relates to processes for producing such compositions.
    Type: Application
    Filed: October 24, 2003
    Publication date: March 16, 2006
    Applicant: MERCK PATENT GMBH
    Inventors: Ratan Chaudhuri, Philip Linz
  • Publication number: 20050244349
    Abstract: The present invention relates to methods and compositions for using photostabilizer compounds for stabilizing formulation ingredients, like flavors, fragrances, colors, antioxidants, polymers, within cosmetics, personal care and household products, against degradation from sun light, heat and air oxidation resulting in improvement in storage stability, viscosity, and maintenance of color of the formulated products.
    Type: Application
    Filed: April 27, 2005
    Publication date: November 3, 2005
    Inventors: Ratan Chaudhuri, Germain Puccetti, Francois Marchio, Zoia Lascu
  • Publication number: 20050214236
    Abstract: A surface treated pearlescent pigment obtained by a process comprising hydrolyzing an amine of the formulae (R)2N—(CH2)n)—SIR? R=alkyl or aryl or A?(R)3—N—(CH2)n—SiR? R?=alkoxy, C1-C3 n=3-5 A?=an anion to obtain silanol groups and contacting a pearlescent pigment with resultant hydrolyzate.
    Type: Application
    Filed: December 22, 2004
    Publication date: September 29, 2005
    Inventors: Qinyun Peng, Philip Linz, Mark Tellefsen, Francois Marchio, Ratan Chaudhuri
  • Publication number: 20050089589
    Abstract: A light colored standardized extract of Emblica officinalis consisting essentially of over 40% by weight of Emblicanin A. Emblicanin B, Pedunculagin and Punigluconin, and not more than about 1% by weight of flavonoids, and methods of producing same. Also disclosed are cosmetic or pharmaceutical compositions comprising the standardized extract and methods of using same to lighten or whiten skin.
    Type: Application
    Filed: January 16, 2003
    Publication date: April 28, 2005
    Inventors: Ratan Chaudhuri, Francois Marchio
  • Publication number: 20050089590
    Abstract: A method to retard, prevent and reverse the sign of skin photo-damage, comprising administering, to a human subject in need thereof, a therapeutically effective dose of a formulation comprising an extract of Emblica officinalis as the active ingredient.
    Type: Application
    Filed: October 24, 2003
    Publication date: April 28, 2005
    Inventor: Ratan Chaudhuri
  • Publication number: 20050064053
    Abstract: In an extraction process comprising extracting a raw extract from Emblica officinalis the improvement comprising conducting the extraction under conditions of time, temperature and atmosphere, to inhibit the formation of black specks and/or oligomeric and/or polymeric tannins and/or oxidation products thereof.
    Type: Application
    Filed: September 12, 2003
    Publication date: March 24, 2005
    Applicant: EM Industries
    Inventors: Ratan Chaudhuri, Germain Puccetti
  • Publication number: 20050048014
    Abstract: A rinse-off composition comprising in percent by weight 0.10-10.00 of a dispersion of bismuth oxychloride 3.50-90.00 of a surfactant, 0.001-0.050 of a dye, 3.00-15.00 of an emollient and 10.00-80.00 of water; said dispersion of bismuth oxychloride containing bismuth oxychloride platelet particles having a lateral width of 5-25 microns and a thickness of 20-200 nm, said platelet particles being substantially covered a liquid vehicle and said liquid vehicle being present in an amount sufficient to maintain a stable dispersion and to provide for facile resuspension.
    Type: Application
    Filed: August 27, 2003
    Publication date: March 3, 2005
    Applicant: EM Industries
    Inventors: Phil Linz, Ratan Chaudhuri
  • Publication number: 20050008590
    Abstract: A method for regulating the appearance of skin comprising topically apply to said skin a composition comprising a cosmetically or pharmaceutically acceptable carrier and about 0.1% to about 40% of an extract comprising low molecular weight hydrolysable tannins.
    Type: Application
    Filed: July 10, 2003
    Publication date: January 13, 2005
    Applicant: EM Industries
    Inventor: Ratan Chaudhuri
  • Publication number: 20040175335
    Abstract: The present invention relates to a composition having UV protection properties, charaterized in that the formulation comprises at least one encapsulated organic sunscreen and does not penetrate the skin essentially.
    Type: Application
    Filed: January 28, 2004
    Publication date: September 9, 2004
    Inventors: Frank Pflucker, Hans-Jurgen Driller, Laure Vouzellaud, Francois Marcho, Herve Guinard, Ratan Chaudhuri