Patents by Inventor Trefor A. Evans

Trefor A. Evans 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: 20070041921
    Abstract: A method of relaxing naturally curly hair that comprises: A) carrying out a hair treatment session that comprises the steps of: i) applying to the hair, an alkaline hair relaxer comprising an active hydroxide, ii) allowing the relaxer to remain on the hair for a total period of less than about 10 minutes; iii) removing the relaxer from the hair; and B) repeating the treatment session described in part (A) to attain a desired degree of hair relaxation, with the interval between individual treatment sessions ranging from about 3 to about 20 days.
    Type: Application
    Filed: August 16, 2006
    Publication date: February 22, 2007
    Inventors: Paul NEILL, Margie FOWLER, Monica MEDEIROS (nee BISPO), Trefor EVANS
  • Patent number: 6787130
    Abstract: An aqueous hair treatment composition comprising: a) at least one silicone pressure sensitive adhesive; and b) at least one material selected from the group consisting of a hair conditioning agent, a hair cleansing agent, and an agent for hair care suspension, is described.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: September 7, 2004
    Assignee: Unilever Home & Personal Care USA a division of Conopco, Inc.
    Inventors: Mrunalini Dhamdhere, Trefor A. Evans, Yun Shan, Pawel Milczarek, Cheryl Taylor, Elena Barbuzzi, Stephen Wire, Wolfgang Robert Bergmann
  • Publication number: 20030091523
    Abstract: An aqueous hair treatment composition comprising:
    Type: Application
    Filed: October 1, 2001
    Publication date: May 15, 2003
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Mrunalini Dhamdhere, Trefor A. Evans, Yun Shan, Pawel Milczarek, Cheryl Taylor, Elena Barbuzzi, Stephen Wire, Wolfgang Robert Bergmann
  • Patent number: 6432394
    Abstract: The present invention relates to hair conditioning shampoo compositions which includes: 1) from about 0.05 to about 5% of one or more dibasic amino acids; 2) from about 5 to about 50% of one or more surfactants; 3) from about 0.05 to about 10% of one or more silicone compounds; and 4) water. The invention also relates to hair conditioning compositions. The invention also relates to a method for conditioning the hair, which comprises contacting said hair with a composition according to the invention.
    Type: Grant
    Filed: April 19, 1999
    Date of Patent: August 13, 2002
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc
    Inventors: Daniel Raymond Pyles, Joanne Crudele, Trefor Evans, Varsha Shah, Wolfgang Robert Bergmann
  • Patent number: 6274128
    Abstract: An essentially anhydrous hair conditioning composition comprising: (a) one or more microporous materials each of which has an average pore size larger than the critical diameter of a water molecule; (b) carrier molecules or molecular aggregates that have critical diameters larger than the largest average pore size of the microporous materials; and (c) conditioner molecules or molecular aggregates that have critical diameters larger than the largest average pore size of the microporous materials. The invention also relates to a method for conditioning hair with warming which comprises administering to the hair, with water, the hair conditioner compositions of the invention.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: August 14, 2001
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Wolfgang Robert Bergmann, Ben Janchitraponvej, Trefor Evans
  • Publication number: 20010008630
    Abstract: The present invention relates to hair conditioning shampoo compositions which includes:
    Type: Application
    Filed: April 19, 1999
    Publication date: July 19, 2001
    Inventors: DANIEL RAYMOND PYLES, JOANNE CRUDELE, TREFOR EVANS, VARSHA SHAH, WOLFGANG BERGMANN
  • Patent number: 6022547
    Abstract: Rinse-off, water-in-oil-in-water multiple emulsion compositions are disclosed. The multiple emulsion compositions comprise an external aqueous phase optionally incorporating an emulsifier and/or a second topically-active compound. The internal phase comprises a primary water-in-oil emulsion, wherein the primary emulsion comprises a first topically-active compound, a surfactant phase, an oil phase, and water.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: February 8, 2000
    Assignee: Helene Curtis, Inc.
    Inventors: Craig A. Herb, Liang Bin Chen, Judy Chung, Michelle A. Long, Wei Mei Sun, Gerald P. Newell, Trefor A. Evans, Kimberly Kamis, Richard M. Brucks
  • Patent number: 5656280
    Abstract: Water-in-oil-in-water multiple emulsion compositions are disclosed. The multiple emulsion compositions comprise an external aqueous phase optionally incorporating a surfactant system capable of forming liquid crystals as an emulsifier. The internal phase comprises a primary water-in-oil emulsion, wherein the primary emulsion comprises a first topically-active compound, a surfactant phase, an oil phase, and water.
    Type: Grant
    Filed: December 6, 1994
    Date of Patent: August 12, 1997
    Assignee: Helene Curtis, Inc.
    Inventors: Craig A. Herb, Liang Bin Chen, Judy Chung, Michelle A. Long, Wei Mei Sun, Gerald P. Newell, Trefor A. Evans, Kimberly Kamis, Richard M. Brucks