Inventor
PARISH GEORGE KEITH
US45 patents
Patents
45 patentsUS6161915ADec 19, 2000
Identification of thermal inkjet printer cartridges
LEXMARK INT INC210 citations97
US5940095AAug 17, 1999
Ink jet print head identification circuit with serial out, dynamic shift registers
LEXMARK INT INC112 citations97
US6161916ADec 19, 2000
Memory expansion circuit for ink jet print head identification circuit
LEXMARK INT INC67 citations96
US6137502AOct 24, 2000
Dual droplet size printhead
LEXMARK INT INC74 citations96
US5867183AFeb 2, 1999
Apparatus for driving multiple ink jet printheads with a single set of drive outputs
LEXMARK INT INC245 citations96
US5757394AMay 26, 1998
Ink jet print head identification circuit with programmed transistor array
LEXMARK INT INC86 citations96
US6951384B2Oct 4, 2005
Ink jet heater chip and method therefor
LEXMARK INT INC22 citations93
US6787050B2Sep 7, 2004
Power distribution architecture for inkjet heater chip
LEXMARK INT INC17 citations93
US6616268B2Sep 9, 2003
Power distribution architecture for inkjet heater chip
LEXMARK INT INC29 citations93
US6431677B1Aug 13, 2002
Print head drive scheme
LEXMARK INT INC44 citations93
US6976752B2Dec 20, 2005
Ink jet printer with resistance compensation circuit
LEXMARK INT INC23 citations92
US6637866B1Oct 28, 2003
Energy efficient heater stack using DLC island
LEXMARK INT INC25 citations92
US6568785B1May 27, 2003
Integrated ink jet print head identification system
LEXMARK INT INC22 citations92
US6502920B1Jan 7, 2003
Ink jet print head having offset nozzle arrays
LEXMARK INT INC25 citations92
US6357863B1Mar 19, 2002
Linear substrate heater for ink jet print head chip
LEXMARK INT INC39 citations92
US6312079B1Nov 6, 2001
Print head drive scheme for serial compression of I/O in ink jets
LEXMARK INT INC31 citations92
US6299274B1Oct 9, 2001
Thermal ink jet printer cartridge identification
LEXMARK INT INC55 citations92
US6274896B1Aug 14, 2001
Drive transistor with fold gate
LEXMARK INT INC43 citations92
US6176569B1Jan 23, 2001
Transitional ink jet heater addressing
LEXMARK INT INC50 citations92
US6022094AFeb 8, 2000
Memory expansion circuit for ink jet print head identification circuit
LEXMARK INT INC39 citations92
US5942900AAug 24, 1999
Method of fault detection in ink jet printhead heater chips
LEXMARK INT INC69 citations92
US6588872B2Jul 8, 2003
Electronic skew adjustment in an ink jet printer
LEXMARK INT INC20 citations91
US6565176B2May 20, 2003
Long-life stable-jetting thermal ink jet printer
LEXMARK INT INC37 citations91
US6540334B1Apr 1, 2003
Method for making ink jet printheads
LEXMARK INT INC21 citations90
US6789871B2Sep 14, 2004
Reduced size inkjet printhead heater chip having integral voltage regulator and regulating capacitors
LEXMARK INT INC14 citations84
US6764163B2Jul 20, 2004
Heater configuration for tri-color heater chip
LEXMARK INT INC19 citations84
US6742866B2Jun 1, 2004
Ink jet print head having offset nozzle arrays
LEXMARK INT INC13 citations84
US6102515AAug 15, 2000
Printhead driver for jetting heaters and substrate heater in an ink jet printer and method of controlling such heaters
LEXMARK INT INC18 citations84
US7258411B2Aug 21, 2007
Method of informing a user of end of life of a consumable for an ink jet printer
LEXMARK INT INC15 citations83
US6962399B2Nov 8, 2005
Method of warning a user of end of life of a consumable for an ink jet printer
LEXMARK INT INC13 citations83
US6616256B1Sep 9, 2003
Serial integrated scan-based testing of ink jet print head
LEXMARK INT INC17 citations82
US6786575B2Sep 7, 2004
Ink jet heater chip and method therefor
LEXMARK INT INC11 citations74
US6712439B1Mar 30, 2004
Integrated circuit and drive scheme for an inkjet printhead
LEXMARK INT INC7 citations74
US6398346B1Jun 4, 2002
Dual-configurable print head addressing
LEXMARK INT INC9 citations74
US6890066B2May 10, 2005
Inkjet printer having improved ejector chip
LEXMARK INT INC7 citations73
US6863381B2Mar 8, 2005
Inkjet printhead heater chip with asymmetric ink vias
LEXMARK INT INC9 citations73
US6805431B2Oct 19, 2004
Heater chip with doped diamond-like carbon layer and overlying cavitation layer
LEXMARK INT INC9 citations73
US6704996B2Mar 16, 2004
Method for making ink jet printheads
LEXMARK INT INC8 citations71
US7850286B2Dec 14, 2010
Micro-fluid ejector pattern for improved performance
LEXMARK INT INC2 citations63
US6830307B2Dec 14, 2004
Integrated circuit and drive scheme for an inkjet printhead
LEXMARK INT INC3 citations63
US7244015B2Jul 17, 2007
Inkjet printhead heater chip with asymmetric ink vias
LEXMARK INT INC1 citations62
US7077509B2Jul 18, 2006
Inkjet printhead heater chip with asymmetric ink vias
LEXMARK INT INC1 citations62
US6913345B2Jul 5, 2005
Method and apparatus for firing nozzles in an ink jet printer
LEXMARK INT INC3 citations62
US7083266B2Aug 1, 2006
Micro-miniature fluid jetting device
LEXMARK INT INC3 citations59
US7014299B2Mar 21, 2006
Inkjet printhead heater chip with asymmetric ink vias
LEXMARK INT INC0 citations52