Patents Assigned to Lexmark Corporation
  • Ink composition
    Patent number: 5421868
    Abstract: The present invention relates to an ink composition for ink jet printers comprising an amorphous bis amide, a colorant and a solvent.
    Type: Grant
    Filed: December 28, 1993
    Date of Patent: June 6, 1995
    Assignees: International Business Machines Corporation, Lexmark Corporation
    Inventors: Juan Ayalia-Esquilin, Ying-Ying Cheng, Arthur F. Diaz, Paul L. Gendler, Thomas E. Karis