Inventor
BENJAMIN TRUDY
US40 patents
⚠️ This page may combine multiple inventors who share the name “BENJAMIN TRUDY”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEWLETT PACKARD DEVELOPMENT CO
20 patentsUS8864260B1Oct 21, 2014
EPROM structure using thermal ink jet fire lines on a printhead
HEWLETT PACKARD DEVELOPMENT CO73 citations98
US7365387B2Apr 29, 2008
Gate-coupled EPROM cell for printhead
HEWLETT PACKARD DEVELOPMENT CO22 citations92
US8348385B2Jan 8, 2013
Printhead die
HEWLETT PACKARD DEVELOPMENT CO13 citations84
US7815273B2Oct 19, 2010
Fluid ejection device
HEWLETT PACKARD DEVELOPMENT CO14 citations79
US7345915B2Mar 18, 2008
Modified-layer EPROM cell
HEWLETT PACKARD DEVELOPMENT CO6 citations74
US10378946B2Aug 13, 2019
Ink level sensing
HEWLETT PACKARD DEVELOPMENT CO1 citations73
US10082414B2Sep 25, 2018
Ink level sensing
HEWLETT PACKARD DEVELOPMENT CO4 citations73
US9987841B2Jun 5, 2018
Inkjet print head with shared data lines
HEWLETT PACKARD DEVELOPMENT CO2 citations73
US9268023B2Feb 23, 2016
Drop detection
HEWLETT PACKARD DEVELOPMENT CO5 citations68
US7648227B2Jan 19, 2010
Fluid ejection device with data signal latch circuitry
HEWLETT PACKARD DEVELOPMENT CO4 citations63
US7935317B2May 3, 2011
Handheld and/or mountable fluid-ejection device receptive to tip containing fluid and fluid-ejection mechanism
HEWLETT PACKARD DEVELOPMENT CO2 citations62
US7815287B2Oct 19, 2010
Fluid ejection device and method
HEWLETT PACKARD DEVELOPMENT CO5 citations62
US7578591B2Aug 25, 2009
Filing, identifying, validating, and servicing tip for fluid-ejection device
HEWLETT PACKARD DEVELOPMENT CO2 citations62
US9289978B2Mar 22, 2016
Fluid ejection device
HEWLETT PACKARD DEVELOPMENT CO2 citations54
US10170466B2Jan 1, 2019
Device having an active channel region
HEWLETT PACKARD DEVELOPMENT CO0 citations52
US7798616B2Sep 21, 2010
Fluid ejection device metal layer layouts
HEWLETT PACKARD DEVELOPMENT CO1 citations52
US7240997B2Jul 10, 2007
Fluid ejection device metal layer layouts
HEWLETT PACKARD DEVELOPMENT CO0 citations52
US8002371B2Aug 23, 2011
Filling, identifying, validating, and servicing tip for fluid-ejection device
HEWLETT PACKARD DEVELOPMENT CO0 citations51
US7887150B2Feb 15, 2011
Controlling fire signals
HEWLETT PACKARD DEVELOPMENT CO0 citations49
US7871142B2Jan 18, 2011
Systems and methods for controlling ink jet pens
HEWLETT PACKARD DEVELOPMENT CO0 citations42
BENJAMIN TRUDY
6 patentsUS8109586B2Feb 7, 2012
Fluid ejection device
BENJAMIN TRUDY7 citations83
US9085139B2Jul 21, 2015
Method and assembly to detect fluid
BENJAMIN TRUDY2 citations62
US8128205B2Mar 6, 2012
Fluid ejection device
BENJAMIN TRUDY4 citations61
US9899539B2Feb 20, 2018
Modified-layer EPROM cell
BENJAMIN TRUDY0 citations51
US9138990B2Sep 22, 2015
Fluid ejection device
BENJAMIN TRUDY1 citations51
US8172368B2May 8, 2012
Fluid ejection device with data signal latch circuitry
BENJAMIN TRUDY0 citations51
GE NING
4 patentsUS9599500B2Mar 21, 2017
Ink level sensor and related methods
GE NING35 citations93
US9252149B2Feb 2, 2016
Device including active floating gate region area that is smaller than channel area
GE NING4 citations73
US8449079B2May 28, 2013
Fluid ejection device having first and second resistors
GE NING2 citations63
US9144984B2Sep 29, 2015
Compound slot
GE NING0 citations45