Patents by Inventor Uma Ganeshram

Uma Ganeshram 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).

  • Fluorescent Pigments for Coating Compositions
    Publication number: 20080135805
    Abstract: The invention relates to a fluorescent pigment comprising a) a melamine-formaldehyde polycondensation product, b) a distyryl biphenyl fluorescent whitening agent (FWA) of the formula (1), in which R1 represents hydrogen, chlorine or C1-C4alkoxy and M represents hydrogen, an alkaline or alkaline earth metal, ammonium or ammonium that is mono-, di-, tri- or tetrasubstituted by C1-C4alkyl or C2-C4hydroxyalkyl and, optionally, c) at least one additional fluorescent whitening agent, a process for its preparation and use thereof for the fluorescent whitening of paper, especially in coating.
    Type: Application
    Filed: August 3, 2005
    Publication date: June 12, 2008
    Inventors: Fabienne Cuesta, Ted Deisenroth, Kamalesh Pai Fondekar, Ramachandra V. Joshi, Peter Rohringer, Uma Ganeshram, Josef Zelger