Apparatus and method for fortification of black pigment based ink using black dye based ink | Patent Publication Number 20040046847
US 20040046847 A1Patent NumberUS 06779864 B2
Application Number10658087
Filled DateSep 9, 2003
Priority DateOct 26, 2001
Publication DateMar 11, 2004
Original AssigneeHewlett Packard Enterprise
Current AssigneeHewlett Packard Enterprise
Inventor/ApplicantsJohn A. Underwood
John A. Underwood
John A. Underwood
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