Inventor
DEVRIES MARK A
US31 patents
⚠️ This page may combine multiple inventors who share the name “DEVRIES MARK A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEWLETT PACKARD DEVELOPMENT CO
22 patentsUS6811249B2Nov 2, 2004
Method and apparatus for determining a minimum pressure to print
HEWLETT PACKARD DEVELOPMENT CO30 citations92
US7188942B2Mar 13, 2007
Filter for printhead assembly
HEWLETT PACKARD DEVELOPMENT CO24 citations91
US7922312B2Apr 12, 2011
Compact ink delivery in an ink pen
HEWLETT PACKARD DEVELOPMENT CO15 citations83
US7862138B2Jan 4, 2011
Flow control in an ink pen
HEWLETT PACKARD DEVELOPMENT CO15 citations83
US7614733B2Nov 10, 2009
Filter for printhead assembly
HEWLETT PACKARD DEVELOPMENT CO15 citations82
US6874873B2Apr 5, 2005
Printhead air management using unsaturated ink
HEWLETT PACKARD DEVELOPMENT CO9 citations74
US6702436B2Mar 9, 2004
Fluid ejection cartridge including a compliant filter
HEWLETT PACKARD DEVELOPMENT CO8 citations74
US10654275B2May 19, 2020
Dual regulator print module
HEWLETT PACKARD DEVELOPMENT CO1 citations73
US10226940B2Mar 12, 2019
Printer fluid circulation system including an air isolation chamber and a printer fluid pressure control valve
HEWLETT PACKARD DEVELOPMENT CO2 citations73
US10179455B2Jan 15, 2019
Dual regulator print module
HEWLETT PACKARD DEVELOPMENT CO1 citations73
US7454955B2Nov 25, 2008
Leak detection structure
HEWLETT PACKARD DEVELOPMENT CO7 citations73
US11254139B2Feb 22, 2022
Fluidic valves formed in a sub-assembly
HEWLETT PACKARD DEVELOPMENT CO2 citations67
US7651209B2Jan 26, 2010
Flow passage
HEWLETT PACKARD DEVELOPMENT CO4 citations63
US11724510B2Aug 15, 2023
Interfaces to connect external print fluid supplies with print fluid reservoirs
HEWLETT PACKARD DEVELOPMENT CO0 citations62
US11440330B2Sep 13, 2022
Liquid delivery in an inkjet type dispenser
HEWLETT PACKARD DEVELOPMENT CO0 citations62
US11254134B2Feb 22, 2022
Fluid supply components comprising valves
HEWLETT PACKARD DEVELOPMENT CO0 citations62
US11247477B2Feb 15, 2022
Coupling systems
HEWLETT PACKARD DEVELOPMENT CO0 citations62
US7237572B2Jul 3, 2007
Check valve
HEWLETT PACKARD DEVELOPMENT CO3 citations62
US10596821B2Mar 24, 2020
Rocker valve
HEWLETT PACKARD DEVELOPMENT CO0 citations52
US10507662B2Dec 17, 2019
Dual regulator print module
HEWLETT PACKARD DEVELOPMENT CO0 citations52
US10071557B2Sep 11, 2018
Printhead assembly with fluid interconnect cover
HEWLETT PACKARD DEVELOPMENT CO0 citations52
US8714720B2May 6, 2014
Metallized print head container and method
HEWLETT PACKARD DEVELOPMENT CO1 citations51
HEWLETT PACKARD CO
3 patentsUS6467861B1Oct 22, 2002
Leak detection for an ink container
HEWLETT PACKARD CO16 citations92
US6431692B1Aug 13, 2002
Packaged ink supply and method of packaging an ink supply to maintain ink in a degassed state
HEWLETT PACKARD CO14 citations84
US6547377B2Apr 15, 2003
Printhead air management using unsaturated ink
HEWLETT PACKARD CO9 citations74