Patents by Inventor Ratan K. Chaudhuri

Ratan K. 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).

  • Publication number: 20090137534
    Abstract: A skin treatment composition or cosmetic product comprising a) two or more active components, namely, at least one dermatological acid and at least one meroterpene and b) a dermatologically acceptable carrier.
    Type: Application
    Filed: November 26, 2007
    Publication date: May 28, 2009
    Inventor: Ratan K. Chaudhuri
  • Publication number: 20090036545
    Abstract: The present invention relates to a method for treating, preventing and improving the condition and/or aesthetic appearance of aging skin, particularly, treating, preventing, ameliorating, reducing and/or eliminating fine lines and/or wrinkles of skin, through meroterpene induced gene manipulation.
    Type: Application
    Filed: September 26, 2008
    Publication date: February 5, 2009
    Inventor: Ratan K. Chaudhuri
  • Publication number: 20080305059
    Abstract: Skin lightening/even toning compositions are provided for reducing skin pigmentation of normal skin and for lightening hyper-pigmented skin said compositions comprising (i) highly purified hexylresorcinol which is substantially free or resorcinol, (ii) optionally, at least one other skin lightening agent, and (iii) a dermatologically acceptable carrier.
    Type: Application
    Filed: June 6, 2007
    Publication date: December 11, 2008
    Inventor: Ratan K. Chaudhuri
  • Publication number: 20080286217
    Abstract: Sunscreen compositions are provided for protecting skin from sun-induced damage comprising (i) at least one UV-B or UV-A/UV-B sunblock active, (ii) at least one meroterpene and (iii) a dermatological acceptable carrier. Preferably, the sunblock active will be a UV-A/UV-B sunblock active or said sunscreen compositions will further comprise at least one UV-A sunblock active. Suitable meroterpenes include plant extracts having one or more meroterpene-enriched fractions, especially suited are Bakuchiol and derivatives of Bakuchiol. These skin protective compositions may optionally include an effective amount of one or more skin protective ingredients such as antioxidants, vitamins, anti-inflammatory agents, self-tanning agents and mixtures thereof.
    Type: Application
    Filed: May 14, 2007
    Publication date: November 20, 2008
    Inventor: Ratan K. Chaudhuri
  • Publication number: 20080131381
    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: September 28, 2007
    Publication date: June 5, 2008
    Inventors: Ratan K. Chaudhuri, Zoia Lascu
  • Patent number: 7166273
    Abstract: Photostable broad-spectrum organic sunscreen compositions comprising a UV-A sunscreen, such as Avobenzone, a photostabilizer, a UV-B liquid organic sunscreen, and a solubilizer and further enhancing the photostability by encapsulation using a sol-gel process.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: January 23, 2007
    Assignee: EMD Chemicals, Inc.
    Inventor: Ratan K. Chaudhuri
  • Patent number: 6969509
    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: Grant
    Filed: June 25, 2003
    Date of Patent: November 29, 2005
    Assignee: EMD Chemicals Inc.
    Inventors: Ratan K. Chaudhuri, Francois Marchio
  • Patent number: 6936735
    Abstract: Compounds of Formula I: wherein R, R1 and R2 are each independently hydrogen or linear or branched C1 to C10 alkyl, or linear or branched C1 to C10 alkoxy; R3 is selected from the group consisting of COCH3, CO2R7, CONH2, CON(R8)2, CN, COX(CH2)n-N—(R4)(R5)(R6), and the quaternized salt form of the formula COX(CH2)n-N—(R4)(R5)(R6)+Y?; X is O or NH; n is an integer of 1 to 5; Y is an anion; R4, R5 and R6 are independently linear or branched C1 to C30 alkyl; and R7 and R8 are independently hydrogen or linear or branched C1-C30 alkyl. Sunscreen formulations containing compounds of Formula I, and methods for protecting hair, skin and substrates such as polymers, textiles, fabrics, leathers and paints using the compounds herein.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: August 30, 2005
    Assignee: EMD Chemicals, Inc.
    Inventor: Ratan K. Chaudhuri
  • Publication number: 20040253332
    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-inflamatory agents, tanning agents, allantoin, glucosamine, phytantriol, hydroxyacids, niacinamide, phytosterols, sunscreens and mixtures thereof.
    Type: Application
    Filed: March 18, 2004
    Publication date: December 16, 2004
    Inventor: Ratan K. Chaudhuri
  • Patent number: 6831191
    Abstract: A compound of formula I wherein A is a moiety which provides UV absorbing activity to the compound of formula I that comprises 1 divalent group or 2 monovalent groups, with at least one group having carbonyl (C═O) functionality. R6 is linear or branched C1-C8 alkyl and R5 is a linear or branched C1-C8 alkyl or hydrogen. Sunscreen formulations which contain these compounds and methods for using these compounds to prepare formulations are also provided.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: December 14, 2004
    Assignee: EM Industries
    Inventor: Ratan K. Chaudhuri
  • Publication number: 20040247536
    Abstract: Photostable broad-spectrum organic sunscreen compositions comprising a UV-A sunscreen, such as Avobenzone, a photostabilizer, a UV-B liquid organic sunscreen, and a solubilizer and further enhancing the photostability by encapsulation using a sol-gel process.
    Type: Application
    Filed: June 3, 2003
    Publication date: December 9, 2004
    Applicant: EMD CHEMICALS, INC.
    Inventor: Ratan K. Chaudhuri
  • Publication number: 20040126446
    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: July 1, 2004
    Applicant: EM Industries
    Inventors: Ratan K. Chaudhuri, Germain Puccetti
  • Publication number: 20040086560
    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: June 25, 2003
    Publication date: May 6, 2004
    Applicants: EM Industries, Hawthorne, New York, Natreon Inc., New Brunswick, New Jersey
    Inventors: Ratan K. Chaudhuri, Francois Marchio
  • Publication number: 20040076699
    Abstract: An anhydrous composition comprising: (a) an antioxidant comprising over 40% by weight of hydrolysable tannins comprising Emblicanin A., Emblicanin B, Pedunculagin and Punigluconin, and (b) a substantially anhydrous or non-aqueous liquid vehicle functioning to disperse the antioxidant.
    Type: Application
    Filed: July 10, 2003
    Publication date: April 22, 2004
    Inventors: Ratan K. Chaudhuri, Philip Linz
  • Publication number: 20040057911
    Abstract: Compounds of Formula I 1
    Type: Application
    Filed: August 27, 2002
    Publication date: March 25, 2004
    Inventor: Ratan K. Chaudhuri
  • Patent number: 6699463
    Abstract: Compounds of Formula I Each R is independently linear or branched C1 to C8 alkyl, or linear or branched C1 to C8 alkoxy or one R is H and the other R is linear or branched C1 to C8 alkyl, or linear or branched C1 to C8 alkoxy; R1 is selected from the group consisting of COCH3, CO2R3, CONH2, CONH(R4)2, CN, COX(CH2)n-N—(R2)(R4)(R3), and the quaternized salt form of the formula COX(CH2)n-N—(R2)(R4)(R3)+Y−; X is O or NH; n is an integer of 1 to 5; Y is an anion; and R2, R3 and R4 are independently linear or branched C1 to C20. Hair care formulations and other compounds containing compounds of Formula I, and methods for protecting hair and substrates such as polymers, textiles, fabrics, leathers and paints using the compounds herein.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: March 2, 2004
    Assignee: EM Industries
    Inventor: Ratan K. Chaudhuri
  • Patent number: 6649150
    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: Grant
    Filed: April 11, 2002
    Date of Patent: November 18, 2003
    Assignees: EM Industries, Natreon Inc.
    Inventors: Ratan K. Chaudhuri, Francois Marchio
  • Publication number: 20030198612
    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: April 11, 2002
    Publication date: October 23, 2003
    Applicants: EM Industries, Natreon Inc.
    Inventors: Ratan K. Chaudhuri, Francois Marchio
  • Publication number: 20030198607
    Abstract: Compounds of Formula I 1
    Type: Application
    Filed: April 10, 2002
    Publication date: October 23, 2003
    Applicant: EM Industries
    Inventor: Ratan K. Chaudhuri
  • Publication number: 20030157035
    Abstract: A compound of formula I 1
    Type: Application
    Filed: December 20, 2001
    Publication date: August 21, 2003
    Applicant: EM Industries
    Inventor: Ratan K. Chaudhuri