Inventor
DOWELL DANIEL D
US28 patents
⚠️ This page may combine multiple inventors who share the name “DOWELL DANIEL D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEWLETT PACKARD DEVELOPMENT CO
21 patentsUS6752493B2Jun 22, 2004
Fluid delivery techniques with improved reliability
HEWLETT PACKARD DEVELOPMENT CO77 citations97
US6685307B2Feb 3, 2004
Apparatus for providing ink to an ink jet print head
HEWLETT PACKARD DEVELOPMENT CO49 citations95
US6773097B2Aug 10, 2004
Ink delivery techniques using multiple ink supplies
HEWLETT PACKARD DEVELOPMENT CO36 citations92
US6739706B2May 25, 2004
Off axis inkjet printing system and method
HEWLETT PACKARD DEVELOPMENT CO20 citations92
US6540323B1Apr 1, 2003
Snout-encompassing capping system for inkjet printheads
HEWLETT PACKARD DEVELOPMENT CO28 citations92
US8967769B1Mar 3, 2015
Print bar structure
HEWLETT PACKARD DEVELOPMENT CO9 citations84
US6702434B2Mar 9, 2004
Fluidic interconnect structures
HEWLETT PACKARD DEVELOPMENT CO15 citations84
US7510274B2Mar 31, 2009
Ink delivery system and methods for improved printing
HEWLETT PACKARD DEVELOPMENT CO7 citations73
US7497562B2Mar 3, 2009
Re-circulating fluid delivery systems
HEWLETT PACKARD DEVELOPMENT CO7 citations73
US6955425B2Oct 18, 2005
Re-circulating fluid delivery systems
HEWLETT PACKARD DEVELOPMENT CO11 citations73
US6834677B2Dec 28, 2004
Over-molded check valves for fluid delivery systems
HEWLETT PACKARD DEVELOPMENT CO8 citations73
US7997698B2Aug 16, 2011
Ink delivery system and methods for improved printing
HEWLETT PACKARD DEVELOPMENT CO2 citations62
US6712365B2Mar 30, 2004
Over-molded gland seal
HEWLETT PACKARD DEVELOPMENT CO4 citations62
US11807019B2Nov 7, 2023
Printing fluid circulation
HEWLETT PACKARD DEVELOPMENT CO0 citations59
US12138937B2Nov 12, 2024
Printing fluid circulation
HEWLETT PACKARD DEVELOPMENT CO0 citations55
US10569543B2Feb 25, 2020
Printhead assembly module
HEWLETT PACKARD DEVELOPMENT CO0 citations52
US9987845B2Jun 5, 2018
Printhead assembly module
HEWLETT PACKARD DEVELOPMENT CO0 citations52
US10618288B2Apr 14, 2020
Shroud for a printhead assembly
HEWLETT PACKARD DEVELOPMENT CO0 citations51
US9975339B2May 22, 2018
Shroud for a printhead assembly
HEWLETT PACKARD DEVELOPMENT CO0 citations51
US10265957B2Apr 23, 2019
Fluid carrying assembly
HEWLETT PACKARD DEVELOPMENT CO0 citations49
US10589527B2Mar 17, 2020
Liquid adsorption
HEWLETT PACKARD DEVELOPMENT CO0 citations47
HEWLETT PACKARD CO
3 patentsUS5936650AAug 10, 1999
Ink delivery system for ink-jet pens
HEWLETT PACKARD CO162 citations98
US6508545B2Jan 21, 2003
Apparatus for providing ink to an ink jet print head
HEWLETT PACKARD CO35 citations92
US6536887B2Mar 25, 2003
Over-molded regulator bag for an ink delivery system
HEWLETT PACKARD CO4 citations62