P

Inventor

TORNIAINEN ERIK D

US63 patents
⚠️ This page may combine multiple inventors who share the name “TORNIAINEN ERIK D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HEWLETT PACKARD DEVELOPMENT CO

37 patents
US11686327B2Jun 27, 2023

Inertial pumps

HEWLETT PACKARD DEVELOPMENT CO2 citations73
US11186090B2Nov 30, 2021

Fluid ejection device

HEWLETT PACKARD DEVELOPMENT CO2 citations73
US10913039B2Feb 9, 2021

Microfluidic mixer

HEWLETT PACKARD DEVELOPMENT CO2 citations73
US10197188B2Feb 5, 2019

Microfluidic valve

HEWLETT PACKARD DEVELOPMENT CO5 citations73
US10173435B2Jan 8, 2019

Fluid ejection device including recirculation system

HEWLETT PACKARD DEVELOPMENT CO1 citations73
US11911731B2Feb 27, 2024

Droplet generator

HEWLETT PACKARD DEVELOPMENT CO2 citations72
US11345162B2May 31, 2022

Fluid recirculation channels

HEWLETT PACKARD DEVELOPMENT CO4 citations72
US11229912B2Jan 25, 2022

Particle separation

HEWLETT PACKARD DEVELOPMENT CO1 citations63
US10207516B2Feb 19, 2019

Fluid ejection device

HEWLETT PACKARD DEVELOPMENT CO1 citations63
US12480532B2Nov 25, 2025

Inertial pumps

HEWLETT PACKARD DEVELOPMENT CO0 citations62
US12343756B2Jul 1, 2025

Fluid dispensing devices with enhanced heating elements for non-aqueous fluids

HEWLETT PACKARD DEVELOPMENT CO0 citations62
US11278891B2Mar 22, 2022

Fluidic channels for microfluidic devices

HEWLETT PACKARD DEVELOPMENT CO1 citations62
US11260668B2Mar 1, 2022

Fluid ejection device including recirculation system

HEWLETT PACKARD DEVELOPMENT CO0 citations62
US11155085B2Oct 26, 2021

Thermal fluid ejection heating element

HEWLETT PACKARD DEVELOPMENT CO0 citations62
US11110456B2Sep 7, 2021

Bead packing in microfluidic channels

HEWLETT PACKARD DEVELOPMENT CO0 citations62
US10882045B2Jan 5, 2021

Polymerase chain reaction device including ejection nozzles

HEWLETT PACKARD DEVELOPMENT CO0 citations62
US10696939B2Jun 30, 2020

Cell lysis

HEWLETT PACKARD DEVELOPMENT CO1 citations62
US10308020B2Jun 4, 2019

Fluid ejection device

HEWLETT PACKARD DEVELOPMENT CO1 citations61
US12251701B2Mar 18, 2025

Fluid thermal processing

HEWLETT PACKARD DEVELOPMENT CO0 citations59
US11904312B2Feb 20, 2024

Microfluidic devices with lid for loading fluid

HEWLETT PACKARD DEVELOPMENT CO0 citations59
US7377620B2May 27, 2008

Hydrophobic nozzle exit with improved micro fluid ejection dynamics

HEWLETT PACKARD DEVELOPMENT CO5 citations56
US11439963B2Sep 13, 2022

Microfluidic device for fluid mixture

HEWLETT PACKARD DEVELOPMENT CO0 citations52
US11318466B2May 3, 2022

Microfluidic fluid flow in a target fluid

HEWLETT PACKARD DEVELOPMENT CO0 citations52
US11209102B2Dec 28, 2021

Microfluidic valve

HEWLETT PACKARD DEVELOPMENT CO0 citations52
US11097270B2Aug 24, 2021

Microfluidic filtering system

HEWLETT PACKARD DEVELOPMENT CO0 citations52
US10828892B2Nov 10, 2020

Printhead with printer fluid check valve

HEWLETT PACKARD DEVELOPMENT CO0 citations52
US10807376B2Oct 20, 2020

Fluid ejection device including recirculation system

HEWLETT PACKARD DEVELOPMENT CO0 citations52
US10730312B2Aug 4, 2020

Fluid ejection device

HEWLETT PACKARD DEVELOPMENT CO0 citations52
US10655994B2May 19, 2020

Microfluidic flow sensor

HEWLETT PACKARD DEVELOPMENT CO0 citations52
US10589269B2Mar 17, 2020

Microfluidic transport

HEWLETT PACKARD DEVELOPMENT CO0 citations52
US10495507B2Dec 3, 2019

Drop ejection based flow sensor calibration

HEWLETT PACKARD DEVELOPMENT CO0 citations52
US10300692B2May 28, 2019

Dual-mode inkjet nozzle operation

HEWLETT PACKARD DEVELOPMENT CO0 citations52
US10286366B2May 14, 2019

Microfluidic mixing device

HEWLETT PACKARD DEVELOPMENT CO0 citations52
US10272691B2Apr 30, 2019

Microfluidic systems and networks

HEWLETT PACKARD DEVELOPMENT CO0 citations52
US10112408B2Oct 30, 2018

Fluid ejection device with fluid feed holes

HEWLETT PACKARD DEVELOPMENT CO1 citations52
US9981265B2May 29, 2018

Microfluidic mixing device

HEWLETT PACKARD DEVELOPMENT CO1 citations52
US10850511B2Dec 1, 2020

Fluid ejection device

HEWLETT PACKARD DEVELOPMENT CO0 citations51

GOVYADINOV ALEXANDER

3 patents
US9090084B2Jul 28, 2015

Fluid ejection device including recirculation system

GOVYADINOV ALEXANDER36 citations98
US8757783B2Jun 24, 2014

Fluid ejection assembly with circulation pump

GOVYADINOV ALEXANDER20 citations90
US8651646B2Feb 18, 2014

Fluid ejection assembly with circulation pump

GOVYADINOV ALEXANDER5 citations84

HEWLETT PACKARD DEVELOPMENT CO LP

3 patents
US9604212B2Mar 28, 2017

Fluid ejection device including recirculation system

HEWLETT PACKARD DEVELOPMENT CO LP4 citations84
US9409170B2Aug 9, 2016

Microfluidic mixing device

HEWLETT PACKARD DEVELOPMENT CO LP3 citations73
US9844933B2Dec 19, 2017

Dual-mode inkjet nozzle operation

HEWLETT PACKARD DEVELOPMENT CO LP0 citations52

PAN ALFRED I-TSUNG

2 patents
US8651624B2Feb 18, 2014

Fluid ejector structure

PAN ALFRED I-TSUNG12 citations83
US8573749B2Nov 5, 2013

Printhead for generating ink drops with reduced tails

PAN ALFRED I-TSUNG2 citations61

MARDILOVICH PETER

2 patents
US8870351B2Oct 28, 2014

Heating resistor

MARDILOVICH PETER0 citations52
US8783831B2Jul 22, 2014

Fluid ejection device having firing chamber with contoured floor

MARDILOVICH PETER0 citations52

KORNILOVICH PAVEL

1 patent
US9395050B2Jul 19, 2016

Microfluidic systems and networks

KORNILOVICH PAVEL16 citations84

TORNIAINEN ERIK D

1 patent
US8740453B2Jun 3, 2014

Microcalorimeter systems

TORNIAINEN ERIK D4 citations68

TAFF BRIAN M

1 patent
US9289982B2Mar 22, 2016

Dual-mode inkjet nozzle operation

TAFF BRIAN M2 citations62

Showing the top 50 of 63 patents by PatentIndex Score.