Patents by Inventor Ameeta B. Madhava

Ameeta B. Madhava 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).

  • Wet rub resistant ink compositions
    Patent number: 6309452
    Abstract: A wet rub resistant ink composition comprises, by weight, at least about 15% carrier medium, colorant in an amount of no more than about 20%, and at least about 2% polymeric capsules having central cavities containing water. The composition is substantially free of film-forming resins. The ink composition may be used in combination with other ink compositions having different colors or shades to increase the color gamut of an ink system.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: October 30, 2001
    Assignee: Lexmark International, Inc.
    Inventors: Bradley L. Beach, Ameeta B. Madhava, Anna M. Pearson, Ajay K. Suthar