Patents by Inventor Caroline Woelfle-Gupta

Caroline Woelfle-Gupta 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).

  • MULTIPHASE LIQUID COMPOSITION FOR LOW VOLTAGE ELECTROWETTING DEVICE
    Publication number: 20110141539
    Abstract: A multi-phase liquid composition comprising a conductive liquid and a non-conductive liquid, said liquids being non miscible, wherein the conductive liquid comprises more than 90% up to 99.9% by weight of a first component having a surface tension above 45 mN/m and comprising water, salt and at least one freezing point lowering agent, and from 0.01% to less than 10% by weight of a second component having a surface tension below 30 mN/m and comprising at least one first compound, wherein said at least one first compound is a non ionic surfactant.
    Type: Application
    Filed: August 6, 2009
    Publication date: June 16, 2011
    Applicant: VARIOPTIC
    Inventors: Mathieu Maillard, Liana Moreau, Christopher J. Tucker, Caroline Woelfle-Gupta, Daniel Lawrence Dermody