Patents by Inventor Paula Michelle Kelly

Paula Michelle Kelly 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).

  • Printing inks
    Patent number: 5711791
    Abstract: Ink jet inks are disclosed comprising a liquid vehicle which is preferably a blend of ethanol and water in a weight ratio of 23/70 (equivalent to 30/70 by volume) to 71/10 (equivalent to 90/10 by volume), a binder, which comprises a sugar or a sugar alcohol or a mixture thereof, preferably a mixture of sorbitol and maltitol, which is soluble in the liquid vehicle, a colorant which is soluble in the liquid vehicle and a surfactant comprising 90% or more of phosphatidylcholine or lysophosphatidylcholine, which is soluble in the liquid vehicle.
    Type: Grant
    Filed: April 4, 1996
    Date of Patent: January 27, 1998
    Assignee: Domino Printing Sciences Plc
    Inventors: John Croker, Paula Michelle Kelly, Raymond David Burr