Patents by Inventor Srinivasa D. Rangaraj

Srinivasa D. Rangaraj 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).

  • Cyan phase change inks
    Patent number: 6652635
    Abstract: Disclosed is a phase change ink composition comprising (a) a phase change carrier, (b) a cyan colored resin or wax comprising the reaction product of (i) a cyan colorant having at least one functional group selected from (A) hydroxyl groups, (B) primary or secondary amino groups, (C) mercapto groups, or (D) mixtures thereof, and (ii) an isocyanate, and (c) an organic acid selected from (i) organic sulfonic acids, (ii) organic phosphinic acids, (iii) organic phosphonic acids, or (iv) mixtures thereof.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: November 25, 2003
    Assignee: Xerox Corporation
    Inventors: Srinivasa D. Rangaraj, Mark R. Parker, Jeffrey R. Kohne
  • Cyan phase change inks
    Publication number: 20030079645
    Abstract: Disclosed is a phase change ink composition comprising (a) a phase change carrier, (b) a cyan colored resin or wax comprising the reaction product of (i) a cyan colorant having at least one functional group selected from (A) hydroxyl groups, (B) primary or secondary amino groups, (C) mercapto groups, or (D) mixtures thereof, and (ii) an isocyanate, and (c) an organic acid selected from (i) organic sulfonic acids, (ii) organic phosphinic acids, (iii) organic phosphonic acids, or (iv) mixtures thereof.
    Type: Application
    Filed: April 10, 2002
    Publication date: May 1, 2003
    Applicant: Xerox Corporation
    Inventors: Srinivasa D. Rangaraj, Mark R. Parker, Jeffrey R. Kohne