Patents by Inventor Michael Alan Rahn

Michael Alan Rahn 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).

  • Viscoelastic cleansing gel with micellar surfactant solutions
    Patent number: 6770607
    Abstract: A viscoelastic cleansing gel composition which includes: a. from about 4 to about 25% an anionic surfactant; and b. from 0 to about 20% of an amphoteric surfactant; wherein the composition has a G′h at 63 rad/s in a range of about 500 to about 1000 Pa. and a &ohgr;c in a range of about 0.1 to about 2 rad/sec and; wherein the ratio of anionic to amphoteric surfactant is in the range of about 1:3 up to a composition which has anionic but no amphoteric surfactant.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: August 3, 2004
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Liang Bin Chen, Michael Alan Rahn, Priscilla LaBonville Walling, Marion Louise Margosiak
  • Viscoelastic cleansing gel with micellar surfactant solutions
    Publication number: 20040053797
    Abstract: A viscoelastic cleansing gel composition, comprising:
    Type: Application
    Filed: September 12, 2002
    Publication date: March 18, 2004
    Applicant: Unilever Home & Personal Products USA, Division of Conopco, Inc.
    Inventors: Liang Bin Chen, Michael Alan Rahn, Priscilla LaBonville Walling, Marion Louise Margosiak
  • Suspending clear cleansing formulation
    Patent number: 6533873
    Abstract: A shower gel formulation having a clear appearance is described which suspends insoluble particles, water insoluble liquids or bubbles and contains an acrylate copolymer, an anionic surfactant, a cationic polymer and, optionally, an amphoteric surfactant. The method of use of the clear shower gel is also described.
    Type: Grant
    Filed: August 1, 2000
    Date of Patent: March 18, 2003
    Assignee: Unilever Home & Personal Care USA division of Conopco, Inc.
    Inventors: Marion Louise Margosiak, Michael Alan Rahn, Rosa Paredes