Patents by Inventor Padmakamuri J. Varaprath

Padmakamuri J. Varaprath 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).

  • Permanent waving with silicones
    Patent number: 5270036
    Abstract: A process for permanent waving of hair by a reaction in which cystine bridges are reduced to cysteine, the hair reshaped, and the reaction reversed. The improvement in the process resides in the step of reversing the reaction by applying to hair a composition which includes a vinyl functional silicone, a carrier fluid, and an oxidizing agent such as hydrogen peroxide. Permanent hair waving neutralizer compositions are also described.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: December 14, 1993
    Assignee: Dow Corning Corporation
    Inventors: Padmakamuri J. Varaprath, Judith M. Vincent