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).

  • Hair treatment compositions which provide hair body and which comprise silicon pressure sensitive adhesives
    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
  • Hair treatment compositions which provide hair body and which comprise silicone pressure sensitive adhesives
    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
  • Rinse-off water-in-oil-in-water compositions
    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
  • Water-in-oil-in-water compositions
    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