Patents by Inventor Jitender Mohan Khurana

Jitender Mohan Khurana 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).

  • Water-based, water-fast ink compositions containing a binder matrix of a monomeric polyacid and a monomeric polybase
    Patent number: 6117222
    Abstract: Water-based, water-fast ink compositions are provided. The compositions contain an aqueous liquid vehicle, a colorant, e.g., a pigment, dye or stain, and a binder material capable of ionically or physically entrapping the selected colorant. The binder material contains two ionically associated components which form a matrix, and comprises either a combination of a monomeric polyacid and a monomeric polybase, or a combination of a basic polymer and an organic acid.
    Type: Grant
    Filed: November 18, 1997
    Date of Patent: September 12, 2000
    Assignee: SRI International
    Inventors: Asutosh Nigam, Subhash Narang, Sei-ichi Yokoi, Sivapackia Ganapathiappan, Jitender Mohan Khurana
  • Water-based ink compositions containing a binder material of a polymeric resin and a neutralizing composition
    Patent number: 6090193
    Abstract: Water-based, water-fast ink compositions are provided. The compositions contain an aqueous liquid vehicle, a colorant, e.g., a pigment, dye or stain, and a binder material capable of ionically or physically entrapping the selected colorant. Certain novel polymers are provided as well.
    Type: Grant
    Filed: October 3, 1997
    Date of Patent: July 18, 2000
    Assignee: SRI International
    Inventors: Asutosh Nigam, Subhash Narang, Sei-ichi Yokoi, Sivapackia Ganapathiappan, Jitender Mohan Khurana
  • Aqueous ink compositions containing a binder of a neutralized acidic resin
    Patent number: 5973025
    Abstract: Water-based, water-fast ink compositions are provided. The compositions contain an aqueous liquid vehicle, a colorant, e.g., a pigment, dye or stain, and a binder material capable of ionically or physically entrapping the selected colorant. Certain novel polymers are provided as well.
    Type: Grant
    Filed: April 11, 1995
    Date of Patent: October 26, 1999
    Assignee: SRI International
    Inventors: Asutosh Nigam, Subhash Narang, Sei-ichi Yokoi, Sivapackia Ganapathiappan, Jitender Mohan Khurana
  • Water-based, water-fast ink compositions containing two-component binder matrix from nitrogen polymer
    Patent number: 5885338
    Abstract: Water-based, water-fast ink compositions are provided. The compositions contain an aqueous liquid vehicle, a colorant, e.g., a pigment, dye or stain, and a binder material capable of ionically or physically entrapping the selected colorant. The binder material contains two ionically associated components which form a matrix, and comprises either a combination of a monomeric polyacid and a monomeric polybase, or a combination of a basic polymer and an organic acid.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: March 23, 1999
    Assignee: SRI International
    Inventors: Asutosh Nigam, Jitender Mohan Khurana