Inventor
BROWNING ROBERT N K
US27 patents
⚠️ This page may combine multiple inventors who share the name “BROWNING ROBERT N K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEWLETT PACKARD DEVELOPMENT CO
15 patentsUS10107667B2Oct 23, 2018
Liquid level indicating
HEWLETT PACKARD DEVELOPMENT CO46 citations98
US6890064B2May 10, 2005
Energy balanced printhead design
HEWLETT PACKARD DEVELOPMENT CO12 citations92
US6860587B2Mar 1, 2005
Ink jet printhead
HEWLETT PACKARD DEVELOPMENT CO26 citations92
US6799822B2Oct 5, 2004
High quality fluid ejection device
HEWLETT PACKARD DEVELOPMENT CO19 citations92
US6722759B2Apr 20, 2004
Ink jet printhead
HEWLETT PACKARD DEVELOPMENT CO24 citations92
US6604814B2Aug 12, 2003
Arrangements of interconnect circuit and fluid drop generators
HEWLETT PACKARD DEVELOPMENT CO19 citations91
US6652072B2Nov 25, 2003
Interconnect circuit
HEWLETT PACKARD DEVELOPMENT CO15 citations82
US6726311B2Apr 27, 2004
Energy balanced printhead design
HEWLETT PACKARD DEVELOPMENT CO10 citations74
US6837573B2Jan 4, 2005
Interconnect circuit
HEWLETT PACKARD DEVELOPMENT CO9 citations72
US7052112B2May 30, 2006
Arrangements of interconnect circuit and fluid drop generators
HEWLETT PACKARD DEVELOPMENT CO8 citations68
US11407220B2Aug 9, 2022
Temperature detection and control
HEWLETT PACKARD DEVELOPMENT CO0 citations62
US11366000B2Jun 21, 2022
Fluid sensing
HEWLETT PACKARD DEVELOPMENT CO0 citations62
US11009382B2May 18, 2021
Liquid level sensing
HEWLETT PACKARD DEVELOPMENT CO0 citations62
US6705706B2Mar 16, 2004
Arrangements of interconnect circuit and fluid drop generators
HEWLETT PACKARD DEVELOPMENT CO3 citations61
US9156254B2Oct 13, 2015
Fluid ejection device
HEWLETT PACKARD DEVELOPMENT CO1 citations52
HEWLETT PACKARD CO
7 patentsUS6491377B1Dec 10, 2002
High print quality printhead
HEWLETT PACKARD CO93 citations97
US6422676B1Jul 23, 2002
Compact ink jet printhead
HEWLETT PACKARD CO25 citations92
US6132033AOct 17, 2000
Inkjet print head with flow control manifold and columnar structures
HEWLETT PACKARD CO37 citations92
US6523935B2Feb 25, 2003
Narrow ink jet printhead
HEWLETT PACKARD CO12 citations74
US6488363B2Dec 3, 2002
Energy balanced printhead design
HEWLETT PACKARD CO10 citations74
US6412917B1Jul 2, 2002
Energy balanced printhead design
HEWLETT PACKARD CO9 citations74
US6478404B2Nov 12, 2002
Ink jet printhead
HEWLETT PACKARD CO7 citations73