P

Inventor

CUMBIE MICHAEL W

US227 patents
⚠️ This page may combine multiple inventors who share the name “CUMBIE MICHAEL W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HEWLETT PACKARD DEVELOPMENT CO

39 patents
US10107667B2Oct 23, 2018

Liquid level indicating

HEWLETT PACKARD DEVELOPMENT CO46 citations98
US10875318B1Dec 29, 2020

Logic circuitry

HEWLETT PACKARD DEVELOPMENT CO31 citations97
US11034157B2Jun 15, 2021

Logic circuitry

HEWLETT PACKARD DEVELOPMENT CO29 citations94
US10894423B2Jan 19, 2021

Logic circuitry

HEWLETT PACKARD DEVELOPMENT CO29 citations94
US9944080B2Apr 17, 2018

Molded fluid flow structure

HEWLETT PACKARD DEVELOPMENT CO13 citations93
US10022962B1Jul 17, 2018

Fluidic die

HEWLETT PACKARD DEVELOPMENT CO15 citations92
US11364719B2Jun 21, 2022

Print component with memory array using intermittent clock signal

HEWLETT PACKARD DEVELOPMENT CO7 citations86
US11141973B2Oct 12, 2021

Integrated circuits including memory cells

HEWLETT PACKARD DEVELOPMENT CO4 citations84
US10940693B1Mar 9, 2021

Logic circuitry

HEWLETT PACKARD DEVELOPMENT CO3 citations84
USD857230SAug 20, 2019

Cassette

HEWLETT PACKARD DEVELOPMENT CO13 citations84
US9895888B2Feb 20, 2018

Fluid flow structure

HEWLETT PACKARD DEVELOPMENT CO5 citations84
US8348373B2Jan 8, 2013

Firing signal forwarding in a fluid ejection device

HEWLETT PACKARD DEVELOPMENT CO8 citations84
US10232619B2Mar 19, 2019

Printhead with bond pad surrounded by dam

HEWLETT PACKARD DEVELOPMENT CO5 citations83
US11666908B2Jun 6, 2023

Microfluidic package

HEWLETT PACKARD DEVELOPMENT CO2 citations73
US11577456B2Feb 14, 2023

Molded panels

HEWLETT PACKARD DEVELOPMENT CO2 citations73
US11559985B2Jan 24, 2023

Integrated circuit with address drivers for fluidic die

HEWLETT PACKARD DEVELOPMENT CO3 citations73
US11479046B2Oct 25, 2022

Logic circuitry for sensor data communications

HEWLETT PACKARD DEVELOPMENT CO1 citations73
US11440008B2Sep 13, 2022

Microfluidic device with capillary chamber

HEWLETT PACKARD DEVELOPMENT CO3 citations73
US11413864B2Aug 16, 2022

Die for a printhead

HEWLETT PACKARD DEVELOPMENT CO3 citations73
US11413865B2Aug 16, 2022

Fluid ejection devices including contact pads

HEWLETT PACKARD DEVELOPMENT CO2 citations73
US11292257B2Apr 5, 2022

Molded die slivers with exposed front and back surfaces

HEWLETT PACKARD DEVELOPMENT CO1 citations73
US11292265B2Apr 5, 2022

Fluid circulation and ejection

HEWLETT PACKARD DEVELOPMENT CO2 citations73
US11186090B2Nov 30, 2021

Fluid ejection device

HEWLETT PACKARD DEVELOPMENT CO2 citations73
US11065883B2Jul 20, 2021

Cross-die recirculation channels and chamber recirculation channels

HEWLETT PACKARD DEVELOPMENT CO2 citations73
US11046084B2Jun 29, 2021

Liquid level sensing

HEWLETT PACKARD DEVELOPMENT CO6 citations73
US11020967B2Jun 1, 2021

Printhead

HEWLETT PACKARD DEVELOPMENT CO2 citations73
US10960658B2Mar 30, 2021

Detecting a level of printable fluid in a container

HEWLETT PACKARD DEVELOPMENT CO3 citations73
US10940694B2Mar 9, 2021

Detecting fluid levels using a variable threshold voltage

HEWLETT PACKARD DEVELOPMENT CO2 citations73
US10926548B2Feb 23, 2021

Printing apparatus and methods for detecting fluid levels

HEWLETT PACKARD DEVELOPMENT CO2 citations73
US10589522B2Mar 17, 2020

Fluidic die

HEWLETT PACKARD DEVELOPMENT CO2 citations73
US10576748B2Mar 3, 2020

Fluid reservoir with fluid property and level detection

HEWLETT PACKARD DEVELOPMENT CO2 citations73
US10245830B2Apr 2, 2019

Printing system with a fluid circulating element

HEWLETT PACKARD DEVELOPMENT CO4 citations73
US10226926B2Mar 12, 2019

Printbars and methods of forming printbars

HEWLETT PACKARD DEVELOPMENT CO4 citations73
US10207500B2Feb 19, 2019

Print head interposers

HEWLETT PACKARD DEVELOPMENT CO3 citations73
US10029467B2Jul 24, 2018

Molded printhead

HEWLETT PACKARD DEVELOPMENT CO2 citations73
US9919525B2Mar 20, 2018

Printed circuit board fluid ejection apparatus

HEWLETT PACKARD DEVELOPMENT CO2 citations73
US9919524B2Mar 20, 2018

Printhead with bond pad surrounded by dam

HEWLETT PACKARD DEVELOPMENT CO4 citations72
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

HEWLETT PACKARD DEVELOPMENT CO LP

10 patents

WEI QINGQIAO

1 patent

Showing the top 50 of 227 patents by PatentIndex Score.