Patents by Inventor Ranjan Chhaganbhai Patel

Ranjan Chhaganbhai Patel 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).

  • Transfer imaging elements
    Patent number: 6664020
    Abstract: A mass transfer imaging element comprising a substrate having a surface colourant layer containing a pigment to be imagewise transferred, wherein said colourant layer comprises a fluorocarbon additive in an amount to provide a fluorocarbon additive:pigment weight ratio of at least 1:20.
    Type: Grant
    Filed: June 13, 1995
    Date of Patent: December 16, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: David Warner, Ranjan Chhaganbhai Patel
  • Transfer imaging elements
    Patent number: 6461787
    Abstract: A mass transfer imaging element comprising a substrate having a surface colorant layer containing a pigment to be imagewise transferred, wherein said colorant layer comprises a fluorocarbon additive in an amount to provide a fluorocarbon additive:pigment weight ratio of at least 1:20.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: October 8, 2002
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: David Warner, Ranjan Chhaganbhai Patel
  • TRANSFER IMAGING ELEMENTS
    Publication number: 20010003638
    Abstract: A mass transfer imaging element comprising a substrate having a surface colourant layer containing a pigment to be imagewise transferred, wherein said colourant layer comprises a fluorocarbon additive in an amount to provide a fluorocarbon additive:pigment weight ratio of at least 1:20.
    Type: Application
    Filed: December 21, 1999
    Publication date: June 14, 2001
    Applicant: David Warner
    Inventors: DAVID WARNER, RANJAN CHHAGANBHAI PATEL