Inventor
CLELAND TODD A
US20 patents
⚠️ This page may combine multiple inventors who share the name “CLELAND TODD A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEWLETT PACKARD CO
16 patentsUS6491377B1Dec 10, 2002
High print quality printhead
HEWLETT PACKARD CO93 citations97
US6139131AOct 31, 2000
High drop generator density printhead
HEWLETT PACKARD CO75 citations95
US5847725ADec 8, 1998
Expansion relief for orifice plate of thermal ink jet print head
HEWLETT PACKARD CO45 citations95
US6402296B1Jun 11, 2002
High resolution inkjet printer
HEWLETT PACKARD CO21 citations92
US6309052B1Oct 30, 2001
High thermal efficiency ink jet printhead
HEWLETT PACKARD CO38 citations92
US6247798B1Jun 19, 2001
Ink compensated geometry for multi-chamber ink-jet printhead
HEWLETT PACKARD CO37 citations92
US6234598B1May 22, 2001
Shared multiple terminal ground returns for an inkjet printhead
HEWLETT PACKARD CO33 citations92
US6231168B1May 15, 2001
Ink jet print head with flow control manifold shape
HEWLETT PACKARD CO17 citations92
US6227640B1May 8, 2001
Variable drop mass inkjet drop generator
HEWLETT PACKARD CO28 citations92
US6132033AOct 17, 2000
Inkjet print head with flow control manifold and columnar structures
HEWLETT PACKARD CO37 citations92
US6123419ASep 26, 2000
Segmented resistor drop generator for inkjet printing
HEWLETT PACKARD CO33 citations92
US6536878B2Mar 25, 2003
Ink jet drop generator and ink composition printing system for producing low ink drop weight with high frequency operation
HEWLETT PACKARD CO18 citations91
US6270201B1Aug 7, 2001
Ink jet drop generator and ink composition printing system for producing low ink drop weight with high frequency operation
HEWLETT PACKARD CO26 citations91
US6478410B1Nov 12, 2002
High thermal efficiency ink jet printhead
HEWLETT PACKARD CO14 citations83
US6360439B1Mar 26, 2002
Method of manufacturing an orifice plate having a plurality of closed slits
HEWLETT PACKARD CO13 citations72
US6290336B1Sep 18, 2001
Segmented resistor drop generator for inkjet printing
HEWLETT PACKARD CO5 citations63
HEWLETT PACKARD DEVELOPMENT CO
3 patentsUS6799822B2Oct 5, 2004
High quality fluid ejection device
HEWLETT PACKARD DEVELOPMENT CO19 citations92
US6594899B2Jul 22, 2003
Variable drop mass inkjet drop generator
HEWLETT PACKARD DEVELOPMENT CO8 citations73
US6662435B1Dec 16, 2003
Method of manufacturing an ink jet print head
HEWLETT PACKARD DEVELOPMENT CO0 citations52