Patents by Inventor Dwiwahyu Haryo Suryo

Dwiwahyu Haryo Suryo 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).

  • Dual composition cosmetic product with a concentration sensitive and an incompatible active respectively placed within first and second compositions
    Patent number: 6585984
    Abstract: A cosmetic product is provided packaged in a dispenser with separate first and second storage areas. The first of the areas contains a first cosmetic composition containing a first dermal active agent, preferably selected from keratolytic skin agents. Particularly preferred are alpha- and beta-hydroxy carboxylic acids as first dermal active placed in a composition having a pH from about 1 to about 5.5. The second area contains a second cosmetic composition with a second dermal agent incompatible with the first composition. Particularly preferred second dermal agents are retinoids, vitamins, enzymes and anti-oxidants. Most preferred is retinol. The dispenser allows transfer of the first and second compositions through an exit nozzle in a respective dispensing weight ratio of from about 30:1 to about 2:1.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: July 1, 2003
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Ian Richard Scott, Jonathan David Hague, Dwiwahyu Haryo Suryo, Endah Sulistyowati, Prem Chandar, Ronni Lynn Weinkauf