Patents by Inventor Tamara Litvin

Tamara Litvin 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: 9138390
    Abstract: The present invention discloses petrolatum based composition containing silicone oils which are structured with specific blend and ratio of fatty acids.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: September 22, 2015
    Assignee: Conopco, Inc.
    Inventors: Tamara Litvin, Joseph Oreste Carnali, Qiu Qiang, Alexander Lips
  • Patent number: 8815800
    Abstract: The invention is directed to skin moisturizing compositions comprising an aminopeptide mixture. The composition replenishes the skins natural moisturization factor and delivers excellent sensory benefits. The composition is not unpleasantly viscous during and after application.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: August 26, 2014
    Assignee: Conopco, Inc.
    Inventors: Eugene Pashkovski, Tamara Litvin, Alexander Lips
  • Publication number: 20130183360
    Abstract: Petrolatum based compositions (i.e., composition in which the emollient petrolatum comprises greater than or equal to 50% of the composition) are desirable because of the excellent moisturization properties provided by petrolatum. However, it has sensory negatives perceived by consumers. Specifically, because of the oily/greasy and “tacky” (i.e., slightly adhesive or gummy to touch) feel, petrolatum has certain limits to the scope of application. We have found a way to overcome this problem using a copolymer which furthermore avoids the undesirable use of additional oil. A composition is therefore provided comprising: i) 50% to 99.95% by weight petrolatum; ii) greater than 0.05% by weight of a copolymer bearing greater than 70% long chain alkyl. said composition having an enthalpy of between 30 and 65, preferably 40 and 60, even more preferably 45 and 55 J/g, the petrolatum number average crystal size being less than 10 ?m, preferably less than 5 ?m, more preferably less than 1 ?m.
    Type: Application
    Filed: September 20, 2011
    Publication date: July 18, 2013
    Inventors: Alexander Lips, Tamara Litvin
  • Patent number: 8372820
    Abstract: The present invention discloses silicone oils which are structured with a copolymer comprising a large percentage of alkane groups. Using high percentage pendant alkane helps provide silicone with ideal gel properties (G?>G?, particularly >1000 cP, more preferably 2000-30,000 cP) and viscosity, after fracture, of 10 to 1000 cP, preferably 30-500 cP MW of polymer and exact chain length are selected to ensure that, when forming gel upon cooling after mixing polymer and silicone, the polymer viscosity will not be so high upon crystal formation that gel cannot form, yet also will not be so low that polymer will phase separate.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: February 12, 2013
    Assignee: Conopco, Inc.
    Inventors: Tamara Litvin, Qiu Qiang, Alexander Lips
  • Publication number: 20100266522
    Abstract: The present invention discloses petrolatum based composition containing silicone oils which are structured with specific blend and ratio of fatty acids.
    Type: Application
    Filed: April 15, 2009
    Publication date: October 21, 2010
    Applicant: Conopco, Inc., d/b/a UNILEVER
    Inventors: Tamara Litvin, Joseph Oreste Carnali, Qiu Qiang, Alexander Lips
  • Publication number: 20100266524
    Abstract: The present invention discloses silicone oils which are structured with a copolymer comprising a large percentage of alkane groups. Using high percentage pendant alkane helps provide silicone with ideal gel properties (G?>G?, particularly >1000 cP, more preferably 2000-30,000 cP) and viscosity, after fracture, of 10 to 1000 cP, preferably 30-500 cP MW of polymer and exact chain length are selected to ensure that, when forming gel upon cooling after mixing polymer and silicone, the polymer viscosity will not be so high upon crystal formation that gel cannot form, yet also will not be so low that polymer will phase separate.
    Type: Application
    Filed: April 15, 2009
    Publication date: October 21, 2010
    Applicant: Conopco, Inc., d/b/a UNILEVER
    Inventors: Tamara Litvin, Qiang Qiu, Alexander Lips