Patents by Inventor Padmaja Sarojini

Padmaja Sarojini 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).

  • Two step permanent coloring of hair
    Patent number: 6743264
    Abstract: A method for treating hair which comprises: first contacting said hair with a substantially inactive mixture of oxidative hair dye precursors; and allowing said mixture to remain in said hair for a period of about 30 seconds to about 60 minutes; followed by contacting said hair with a developer to achieve long lasting hair color change, is described.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: June 1, 2004
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Padmaja Sarojini, John Brian Bartolone, Alexander C. Chan
  • Two step permanent coloring of hair
    Publication number: 20030154562
    Abstract: A method for treating hair which comprises:
    Type: Application
    Filed: February 14, 2002
    Publication date: August 21, 2003
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Padmaja Sarojini, John Brian Bartolone, Alexander C. Chan