Inventor
PRZYBYLA JAMES R
US52 patents
⚠️ This page may combine multiple inventors who share the name “PRZYBYLA JAMES R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEWLETT PACKARD DEVELOPMENT CO
48 patentsUS7072093B2Jul 4, 2006
Optical interference pixel display with charge control
HEWLETT PACKARD DEVELOPMENT CO161 citations99
US6741384B1May 25, 2004
Control of MEMS and light modulator arrays
HEWLETT PACKARD DEVELOPMENT CO301 citations99
US6829132B2Dec 7, 2004
Charge control of micro-electromechanical device
HEWLETT PACKARD DEVELOPMENT CO262 citations98
US7218438B2May 15, 2007
Optical electronic device with partial reflector layer
HEWLETT PACKARD DEVELOPMENT CO26 citations92
US7199916B2Apr 3, 2007
Light modulator device
HEWLETT PACKARD DEVELOPMENT CO28 citations92
US7040764B2May 9, 2006
Projection system using ambient light
HEWLETT PACKARD DEVELOPMENT CO29 citations92
US6853476B2Feb 8, 2005
Charge control circuit for a micro-electromechanical device
HEWLETT PACKARD DEVELOPMENT CO31 citations92
US7370185B2May 6, 2008
Self-packaged optical interference display device having anti-stiction bumps, integral micro-lens, and reflection-absorbing layers
HEWLETT PACKARD DEVELOPMENT CO13 citations84
US7187487B2Mar 6, 2007
Light modulator with a light-absorbing layer
HEWLETT PACKARD DEVELOPMENT CO10 citations84
US7733553B2Jun 8, 2010
Light modulator with tunable optical state
HEWLETT PACKARD DEVELOPMENT CO15 citations83
US7447891B2Nov 4, 2008
Light modulator with concentric control-electrode structure
HEWLETT PACKARD DEVELOPMENT CO16 citations83
US7088566B2Aug 8, 2006
Charge control of micro-electromechanical device
HEWLETT PACKARD DEVELOPMENT CO12 citations83
US7221497B2May 22, 2007
Optical interference pixel display
HEWLETT PACKARD DEVELOPMENT CO9 citations74
US11712896B2Aug 1, 2023
Nozzle arrangements and supply channels
HEWLETT PACKARD DEVELOPMENT CO2 citations71
US11305537B2Apr 19, 2022
Nozzle arrangements and supply channels
HEWLETT PACKARD DEVELOPMENT CO4 citations71
US11034151B2Jun 15, 2021
Nozzle arrangements
HEWLETT PACKARD DEVELOPMENT CO3 citations71
US12311676B2May 27, 2025
Active circuit elements on a membrane
HEWLETT PACKARD DEVELOPMENT CO0 citations63
US11642888B2May 9, 2023
Fluid ejection devices with indicators
HEWLETT PACKARD DEVELOPMENT CO0 citations63
US11312129B2Apr 26, 2022
Fluidic dies with selectors adjacent respective firing subassemblies
HEWLETT PACKARD DEVELOPMENT CO0 citations63
US11292250B2Apr 5, 2022
Non-nucleation fluid actuator measurements
HEWLETT PACKARD DEVELOPMENT CO0 citations63
US11173712B2Nov 16, 2021
Sense measurements for fluidic actuators
HEWLETT PACKARD DEVELOPMENT CO0 citations63
US11046073B2Jun 29, 2021
Fluid ejection die heat exchangers
HEWLETT PACKARD DEVELOPMENT CO0 citations63
US11037036B2Jun 15, 2021
Fluid actuator registers
HEWLETT PACKARD DEVELOPMENT CO0 citations63
US12257837B2Mar 25, 2025
Interspersed fluidic elements and circuit elements in a fluidic die
HEWLETT PACKARD DEVELOPMENT CO0 citations62
US11633949B2Apr 25, 2023
Fluid actuators connected to field effect transistors
HEWLETT PACKARD DEVELOPMENT CO0 citations62
US11559987B2Jan 24, 2023
Fluidic die with surface condition monitoring
HEWLETT PACKARD DEVELOPMENT CO0 citations62
US11325370B2May 10, 2022
Fluidic die with low voltage monitoring circuit including high voltage tolerant transistor
HEWLETT PACKARD DEVELOPMENT CO0 citations62
US10960661B2Mar 30, 2021
Fluid ejection device circuit
HEWLETT PACKARD DEVELOPMENT CO0 citations62
US7471441B1Dec 30, 2008
Flexures
HEWLETT PACKARD DEVELOPMENT CO3 citations62
US7184193B2Feb 27, 2007
Systems and methods for amorphous flexures in micro-electro mechanical systems
HEWLETT PACKARD DEVELOPMENT CO4 citations62
US7056759B2Jun 6, 2006
Method for making a microelectromechanical system using a flexure protection layer
HEWLETT PACKARD DEVELOPMENT CO6 citations62
US12030310B2Jul 9, 2024
Maintenance routines
HEWLETT PACKARD DEVELOPMENT CO0 citations61
US11958293B2Apr 16, 2024
Nozzle arrangements
HEWLETT PACKARD DEVELOPMENT CO0 citations61
US11807005B2Nov 7, 2023
Nozzle arrangements
HEWLETT PACKARD DEVELOPMENT CO0 citations61
US11247470B2Feb 15, 2022
Nozzle arrangements and feed holes
HEWLETT PACKARD DEVELOPMENT CO0 citations61
US11951739B2Apr 9, 2024
Fluidic die with high aspect ratio power bond pads
HEWLETT PACKARD DEVELOPMENT CO0 citations60
US7760197B2Jul 20, 2010
Fabry-perot interferometric MEMS electromagnetic wave modulator with zero-electric field
HEWLETT PACKARD DEVELOPMENT CO6 citations59
US12128684B2Oct 29, 2024
Fluid channels of different types
HEWLETT PACKARD DEVELOPMENT CO0 citations58
US11376862B2Jul 5, 2022
Fluid ejection with micropumps and pressure-difference based fluid flow
HEWLETT PACKARD DEVELOPMENT CO1 citations53
US12233647B2Feb 25, 2025
Arrangements of circuit elements and fluidic elements
HEWLETT PACKARD DEVELOPMENT CO0 citations52
US11541658B2Jan 3, 2023
Fluidic die with nozzle layer electrode for fluid control
HEWLETT PACKARD DEVELOPMENT CO0 citations52
US10780697B2Sep 22, 2020
Fluid ejection dies
HEWLETT PACKARD DEVELOPMENT CO0 citations52
US10449762B2Oct 22, 2019
Fluid ejection device
HEWLETT PACKARD DEVELOPMENT CO0 citations52
US10286653B2May 14, 2019
Printhead
HEWLETT PACKARD DEVELOPMENT CO0 citations52
US8348393B2Jan 8, 2013
Print head diaphragm support
HEWLETT PACKARD DEVELOPMENT CO0 citations52
US12576633B2Mar 17, 2026
Matching electrically conductive line resistances to switches in fluidic dies
HEWLETT PACKARD DEVELOPMENT CO0 citations50
US11685115B2Jun 27, 2023
Additive manufacturing with nozzles at different die widths
HEWLETT PACKARD DEVELOPMENT CO0 citations50
US10967646B2Apr 6, 2021
Jettable material firing chamber check valve
HEWLETT PACKARD DEVELOPMENT CO0 citations50
FAASE KENNETH J
1 patentHEWLETT PACKARD DEVELOPMENT CO LP
1 patentShowing the top 50 of 52 patents by PatentIndex Score.