Patents by Inventor Prem Chandar

Prem Chandar 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: 20060239955
    Abstract: A cosmetic composition is provided which is substantially free of fatty acids and soap and yet displays the typical sensory and optical features of a vanishing cream. The composition comprises C12-C22 fatty alcohol, emulsifier, inorganic agent, polymer and water. The inorganic agent comprises smectite clay. The composition is mild and may be used to stabilise and deliver a wide variety of skin benefit agents such as sunscreens.
    Type: Application
    Filed: February 27, 2006
    Publication date: October 26, 2006
    Inventors: Prem Chandar, Vinodkumar Dhanuka, Vibhav Sanzgiri, Shivani Shah
  • Patent number: 6991799
    Abstract: A non-sticky moisturizing cosmetic composition containing a relatively high level of a humectant, such as glycerol or sorbitol, and a polymeric wetting agent.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: January 31, 2006
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventors: Quynh T. Pham, Tak Yu Lam, Norman Kramer Richardson, Prem Chandar, Alexander Lips
  • Patent number: 6979452
    Abstract: A high skin friction cosmetic composition that can provide the consumer-desired sensory properties of traditional vanishing creams, stable at low pH, containing solid asymmetric particles and an anionic emulsifier having pKa values of less than about 4.5. The composition preferably further includes an acidic skin benefit agent. A method of controlling or preventing an oily skin appearance and/or feel especially in the facial area, by applying to the skin the inventive composition is also disclosed.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: December 27, 2005
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventors: Yan Zhou, Ramesh Surianarayanan, Prem Chandar, Pushker Sona, Michael J. Barratt
  • Publication number: 20050249684
    Abstract: A cosmetic composition is provided which includes a crosslinked silicone elastomer, a zinc oxide or zirconium oxide of average particle size less than 300 nm and a taurate polymer, in a cosmetically acceptable carrier system. The composition achieves soft focus and radiance properties which improve the appearance of skin. Good coverage over imperfections such as pores and uneven skin tone is achieved while retaining a natural skin appearance.
    Type: Application
    Filed: May 7, 2004
    Publication date: November 10, 2005
    Inventors: Brian Dobkowski, Jeffrey Rosevear, Prem Chandar, Marc De Mul, Jack Polonka
  • Publication number: 20050233916
    Abstract: The present invention relates to compositions delivering enhanced visual benefits to the skin with specific optical attributes. These are delivered using specific deposition systems (where oil/emollient comprises part of deposition system) and/or by ensuring dispersion of particles.
    Type: Application
    Filed: January 26, 2005
    Publication date: October 20, 2005
    Inventors: Jack Polonka, Brian Hamilton, Alexander Lips, Prem Chandar
  • Publication number: 20050227882
    Abstract: The present invention relates to facial wash compositions delivering enhanced whitening using sub-micron titanium dioxide, optional modifier and specific deposition systems.
    Type: Application
    Filed: November 24, 2004
    Publication date: October 13, 2005
    Inventors: Liang Tsaur, Jack Polonka, Prem Chandar
  • Publication number: 20050227881
    Abstract: The present invention relates to compositions delivering enhanced visual benefits to the skin with specific optical attributes. These are delivered using specific deposition systems and/or by ensuring dispersion of particles.
    Type: Application
    Filed: March 31, 2004
    Publication date: October 13, 2005
    Inventors: Jack Polonka, Brian Hamilton, Alexander Lips, Prem Chandar
  • Publication number: 20050227886
    Abstract: The present invention relates to beauty wash bar compositions which deliver enhanced visual benefits to the skin with specific optical attributes. This is accomplished using specific deposition systems and/or by ensuring dispersion of particles onto skin.
    Type: Application
    Filed: March 31, 2004
    Publication date: October 13, 2005
    Inventors: Rajesh Patel, Jack Polonka, Quynh Pham, Alexander Lips, Prem Chandar
  • Publication number: 20050220735
    Abstract: The present invention relates to facial wash compositions delivering enhanced whitening using sub-micron titanium dioxide, optional modifier and specific deposition systems.
    Type: Application
    Filed: March 31, 2004
    Publication date: October 6, 2005
    Inventors: Liang Tsaur, Jack Polonka, Prem Chandar
  • Publication number: 20050220736
    Abstract: The present invention relates to compositions delivering enhanced visual benefits to the skin with specific optical attributes. These are delivered using specific deposition systems and/or by ensuring dispersion of particles.
    Type: Application
    Filed: November 24, 2004
    Publication date: October 6, 2005
    Inventors: Jack Polonka, Brian Hamilton, Alexander Lips, Prem Chandar
  • Publication number: 20050220737
    Abstract: The present invention relates to beauty wash bar compositions which deliver enhanced visual benefits to the skin with specific optical attributes. This is accomplished using specific deposition systems and/or by ensuring dispersion of particles onto skin.
    Type: Application
    Filed: November 24, 2004
    Publication date: October 6, 2005
    Inventors: Rajesh Patel, Jack Polonka, Quynh Pham, Alexander Lips, Prem Chandar
  • Publication number: 20050220738
    Abstract: The present invention relates to beauty wash bar compositions which deliver enhanced visual benefits to the skin with specific optical attributes. This is accomplished using specific deposition systems (where oil/emollient comprises part of deposition system) and/or by ensuring dispersion of particles onto skin.
    Type: Application
    Filed: January 26, 2005
    Publication date: October 6, 2005
    Inventors: Rajesh Patel, Jack Polonka, Quynh Pham, Alexander Lips, Prem Chandar
  • Patent number: 6949247
    Abstract: A stable skin care composition containing about 0.0001% to about 50% of at least one retinoid booster, about 0.001% to about 10% of a retinoid; and a cosmetically acceptable vehicle, wherein the stable skin care composition is contained in a package so that the composition is out of contact with oxygen.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: September 27, 2005
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventors: Stewart Paton Granger, Prem Chandar, Ian Richard Scott
  • Publication number: 20050163730
    Abstract: A cosmetic composition is provided which includes a crosslinked silicone elastomer, a zinc oxide or zirconium oxide of average particle size less than 300 nm and a light reflecting inorganic material of platelet shaped particles having an average particle size of about 10,000 to about 30,000 nm, in a cosmetically acceptable carrier system. The composition achieves soft focus and radiance properties which improve the appearance of skin. Good coverage over imperfections such as pores and uneven skin tone is achieved while retaining a natural skin appearance.
    Type: Application
    Filed: May 7, 2004
    Publication date: July 28, 2005
    Inventors: Jeffrey Rosevear, Brian Dobkowski, Prem Chandar, Marc De Mul, Jack Polonka
  • Patent number: 6881414
    Abstract: A cosmetic composition containing a retinoid and having an improved stability and mildness. Especially preferred compositions also include retinoid boosters and a polyhydric alcohol humectant.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: April 19, 2005
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Prem Chandar, Quynh T. Pham, Tak Yu Lam, Yan Zhou, Ritu Verma, Alexander Lips
  • Patent number: 6869598
    Abstract: Cosmetic compositions containing organic sunscreens along with a 4-substituted resorcinol derivatives of general formula I exhibit improved storage stability and oxidative stability: where each R1 and R2, independently, represents a hydrogen atom, —CO—R (acyl group), —COO—R CONHR; where R represents saturated or unsaturated, linear, branched or cyclic C1-C18 hydrocarbon groups; and R3 represents (1) an alkyl group, having from 1 to 18 carbon atoms, preferably having from 2 to 12 carbon atoms, with or without substitution of one or more hydrogen atoms of a linear alkyl group with a methyl or ethyl group; e.g., R3 constitutes linear or branched chain alkyls, or (2) a group of the general formula formula (II) Where X is preferably H, n is 0 to 3 and the dashed lines represents an optional double bond.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: March 22, 2005
    Assignee: Unilever Home & Personal Care USA Division of Conopco, Inc.
    Inventors: Arthur Ray Love, Judith Lynne Kerschner, Michael James Barratt, Yan Zhou, Prem Chandar
  • Publication number: 20040185070
    Abstract: A cosmetic composition is provided which includes a high level of glycerin, a copolymer which is preferably a C10-C18 acrylates crosspolymer, and a crystalline gel structurant comprising a surfactant and co-surfactant, the structurant having an enthalpy ranging from about 2 to about 15 Joule per gram, wherein the composition has a normal force of from about +5 to about +50 grams thereby achieving a silky sensory feel on skin, the glycerin to copolymer being present in a weight ratio ranging from about 350:1 to about 10:1. Advantageously, the composition has a SkiCon Value ranging from about 10 to about 80.
    Type: Application
    Filed: June 11, 2003
    Publication date: September 23, 2004
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Stephen Roy Barrow, Quynh Pham, Michael Charles Cheney, Brian John Dobkowski, Alexander Lips, Prem Chandar
  • Publication number: 20030185773
    Abstract: Cosmetic compositions containing organic sunscreens along with a 4-substituted resorcinol derivatives of general formula I exhibit improved storage stability and oxidative stability: 1
    Type: Application
    Filed: March 11, 2003
    Publication date: October 2, 2003
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Arthur Ray Love, Judith Lynne Kerschner, Michael James Barratt, Yan Zhou, Prem Chandar
  • Publication number: 20030180334
    Abstract: A high skin friction cosmetic composition that can provide the consumer-desired sensory properties of traditional vanishing creams, stable at low pH, containing solid asymmetric particles and an anionic emulsifier having pKa values of less than about 4.5. The composition preferably further includes an acidic skin benefit agent. A method of controlling or preventing an oily skin appearance and/or feel especially in the facial area, by applying to the skin the inventive composition is also disclosed.
    Type: Application
    Filed: March 22, 2002
    Publication date: September 25, 2003
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Yan Zhou, Ramesh Surianarayanan, Prem Chandar, Pushker Sona, Michael J. Barratt
  • Patent number: 6585984
    Abstract: A cosmetic product is provided packaged in a dispenser with separate first and second storage areas. The first of the areas contains a first cosmetic composition containing a first dermal active agent, preferably selected from keratolytic skin agents. Particularly preferred are alpha- and beta-hydroxy carboxylic acids as first dermal active placed in a composition having a pH from about 1 to about 5.5. The second area contains a second cosmetic composition with a second dermal agent incompatible with the first composition. Particularly preferred second dermal agents are retinoids, vitamins, enzymes and anti-oxidants. Most preferred is retinol. The dispenser allows transfer of the first and second compositions through an exit nozzle in a respective dispensing weight ratio of from about 30:1 to about 2:1.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: July 1, 2003
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Ian Richard Scott, Jonathan David Hague, Dwiwahyu Haryo Suryo, Endah Sulistyowati, Prem Chandar, Ronni Lynn Weinkauf