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).

  • Stable skin care compositions containing a retinoid and a retinoid booster system
    Publication number: 20030049286
    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: Application
    Filed: November 5, 2001
    Publication date: March 13, 2003
    Inventors: Stewart Paton Granger, Prem Chandar, Ian Richard Scott
  • Stable skin conditioning compositions containing retinoid boosters
    Publication number: 20020168389
    Abstract: A stable oil-in-water emulsion comprising a retinoid, at least one booster compound, and a cosmetically acceptable vehicle, wherein the oil phase of the oil-in-water emulsion has a peroxide value of less than or equal to 12.
    Type: Application
    Filed: November 7, 2001
    Publication date: November 14, 2002
    Inventors: Prem Chandar, Yan Zhou, Stewart Paton Granger, Ian Richard Scott
  • Stable skin care product containing a retinoid and a retinoid booster system in a dual compartment package
    Publication number: 20020142016
    Abstract: A stable skin care product comprising a first composition comprising about 0.001% to about 10% of a retinoid; a second composition comprising about 0.0001% to about 50% of at least one retinoid booster; a first compartment for storing the first composition, wherein the first compartment keeps the first composition out of contact with oxygen; and a second compartment for storing the second composition, the first and second compartments being joined together.
    Type: Application
    Filed: November 8, 2001
    Publication date: October 3, 2002
    Inventors: Stewart Paton Granger, Prem Chandar, Ian Richard Scott
  • Non-sticky cosmetic moisturizer for skin and hair
    Publication number: 20020131946
    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: Application
    Filed: November 1, 2001
    Publication date: September 19, 2002
    Inventors: Quynh T. Pham, Tak Yu Lam, Norman Kramer Richardson, Prem Chandar, Alexander Lips
  • High skin friction cosmetic creams with retinoids
    Patent number: 6451330
    Abstract: A cosmetic composition is provided which includes at least about 2% solid asymmetric particles, a retinoid solubilized in a fluid oil and wherein the fluid oil to solid particles are present in a weight ratio such that the composition exhibits a normal force value of less than −100 milli-Newton containing a retinoid. The composition diminishes the appearance and feel of oily skin and is capable of delivering benefits associated with retinoids.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: September 17, 2002
    Assignee: Unilever Home & Personal Care, USA, division of Conopco, Inc.
    Inventors: Quynh Pham, Yan Zhou, Prem Chandar
  • Mild cosmetic composition with stabilized retinoids
    Publication number: 20020110572
    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: Application
    Filed: November 1, 2001
    Publication date: August 15, 2002
    Inventors: Prem Chandar, Quynh T. Pham, Tak Yu Lam, Yan Zhou, Ritu Verma, Alexander Lips
  • High skin friction cosmetic creams with retinoids
    Publication number: 20020061318
    Abstract: A cosmetic composition is provided which includes at least about 2% solid asymmetric particles, a retinoid solubilized in a fluid oil and wherein the fluid oil to solid particles are present in a weight ratio such that the composition exhibits a normal force value of less than −100 milli-Newton containing a retinoid. The composition diminishes the appearance and feel of oily skin and is capable of delivering benefits associated with retinoids.
    Type: Application
    Filed: July 26, 2001
    Publication date: May 23, 2002
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Quynh Pham, Yan Zhou, Prem Chandar
  • Oil-in-water cosmetic emulsions containing a stabilized protease
    Patent number: 5811112
    Abstract: Cosmetic oil-in-water emulsions which are intended to be left on the skin after application (not rinsed off) the emulsions incorporating a stabilized protease. The cosmetic emulsions useful in treatment of dry, flaky, rough, aged, wrinkled or cellulotic skin.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: September 22, 1998
    Assignee: Chesebrough-Pond's USA Co., Division of Conopco Inc.
    Inventors: Prem Chandar, Norman Kramer Richardson, Alyse Battaglia, Karla Jean Cicciari, Kara Newell El-Kadi
  • Stabilization of an unstable retinoid in oil-in-water emulsions for skin care compositions
    Patent number: 5744148
    Abstract: Oil-in-water emulsions containing an unstable retinoid (retinol or C.sub.2 -C.sub.3 ester thereof) in an oil phase. The retinoid is stabilized in the inventive emulsions, despite the presence of from about 50% to about 98% of an aqueous phase. The emulsions also preferably include a hydroxy acid.
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: April 28, 1998
    Assignee: Chesebrough-Pond's USA Co., Division of Conopco, Inc.
    Inventors: Stephan Samuel Habif, Alexander Lips, Prem Chandar, Mark Edward Rerek
  • Synthetic ceramides and their use in cosmetic compostions
    Patent number: 5476671
    Abstract: A novel pseudoceramide which has improved dispersibility in aqueous solutions and which can be produced by an economical manufacturing process. The process for producing new pseudoceramides and cosmetic compositions containing the new pseudoceramides are also disclosed.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: December 19, 1995
    Assignee: Chesebrough-Pond's USA Co., Division of Conopco, Inc.
    Inventors: Suk H. Cho, Laura J. Frew, Prem Chandar, Stephen A. Madison