David Maxfield

Person

Philomath, OR, US

People

Patents Grantslast 30 patents

Information Patent Grant
Detecting a drive bubble formation and collapse
- Patent number 11,065,867
- Issue date Jul 20, 2021
- Hewlett-Packard Development Company, L.P.
- Eric T. Martin
- G01 - MEASURING TESTING
Information Patent Grant
Modifying firing parameters for printheads
- Patent number 10,654,268
- Issue date May 19, 2020
- Hewlett-Packard Development Company, L.P.
- Gerard Alzona
- G01 - MEASURING TESTING
Information Patent Grant
Detecting a drive bubble formation and collapse
- Patent number 10,493,752
- Issue date Dec 3, 2019
- Hewlett-Packard Development Company, L.P.
- Eric T. Martin
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Liquid propelling component
- Patent number 10,369,801
- Issue date Aug 6, 2019
- Hewlett-Packard Development Company, L.P.
- Vincent C Korthuis
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Printheads with sensor plate impedance measurement
- Patent number 10,336,089
- Issue date Jul 2, 2019
- Hewlett-Packard Development Company, L.P.
- Adam L. Ghozeil
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Printer fluid impedance sensing in a printhead
- Patent number 10,183,488
- Issue date Jan 22, 2019
- Hewlett-Packard Development Company, L.P.
- Gerard Alzona
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Fluid ejection apparatus with single power supply connector
- Patent number 10,029,464
- Issue date Jul 24, 2018
- Hewlett-Packard Development Company, L.P.
- Adam L. Ghozeil
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Printhead assembly
- Patent number 9,987,850
- Issue date Jun 5, 2018
- Hewlett-Packard Development Company, L.P.
- David Maxfield
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Printheads with sensor plate impedance measurement
- Patent number 9,962,949
- Issue date May 8, 2018
- Hewlett-Packard Development Company, L.P.
- Adam L. Ghozeil
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Fluid ejection apparatus with single-side thermal sensor
- Patent number 9,956,771
- Issue date May 1, 2018
- Hewlett-Packard Development Company, L.P.
- David Maxfield
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Detecting a drive bubble formation and collapse
- Patent number 9,950,517
- Issue date Apr 24, 2018
- Hewlett-Packard Development Company, L.P.
- Eric T. Martin
- G01 - MEASURING TESTING
Information Patent Grant
Fluid ejection apparatus with single power supply connector
- Patent number 9,796,181
- Issue date Oct 24, 2017
- Hewlett-Packard Development Company, L.P.
- Adam L. Ghozeil
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Fluid ejection apparatus with single-side thermal sensor
- Patent number 9,796,178
- Issue date Oct 24, 2017
- Hewlett-Packard Development Company, L.P.
- David Maxfield
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Determining an issue in an inkjet nozzle with impedance measurements
- Patent number 9,701,116
- Issue date Jul 11, 2017
- Hewlett-Packard Development Company, L.P.
- Andrew L. Van Brocklin
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Fluid ejection apparatus with single-side thermal sensor
- Patent number 9,669,624
- Issue date Jun 6, 2017
- Hewlett-Packard Development Company, L.P.
- David Maxfield
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Printhead assembly
- Patent number 9,610,772
- Issue date Apr 4, 2017
- Hewlett-Packard Development Company, L.P.
- David Maxfield
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Determining an issue in an inkjet nozzle with impedance measurements
- Patent number 9,463,622
- Issue date Oct 11, 2016
- Hewlett-Packard Development Company, L.P.
- Andrew L. Van Brocklin
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Detecting a drive bubble formation and collapse
- Patent number 9,409,393
- Issue date Aug 9, 2016
- Hewlett-Packard Development Company, L.P.
- Eric T. Martin
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Determining an issue in an inkjet nozzle with impedance measurements
- Patent number 9,352,564
- Issue date May 31, 2016
- Hewlett-Packard Development Company, L.P.
- Andrew L. Van Brocklin
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Determining an issue with an inkjet nozzle using an impedance diffe...
- Patent number 8,899,709
- Issue date Dec 2, 2014
- Hewlett-Packard Development Company, L.P.
- Alexander Govyadinov
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Calibrating a program that detects a condition of an inkjet nozzle
- Patent number 8,870,322
- Issue date Oct 28, 2014
- Hewlett-Packard Development Company, L.P.
- Eric T. Martin
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Firing cell
- Patent number 8,511,796
- Issue date Aug 20, 2013
- Hewlett-Packard Development Company, L.P.
- Adam L. Ghozeil
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Method of dispensing liquid
- Patent number 8,333,453
- Issue date Dec 18, 2012
- Hewlett-Packard Development Company, L.P.
- Christie Dudenhoefer
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
DETECTING A DRIVE BUBBLE FORMATION AND COLLAPSE
- Publication number 20200055312
- Publication date Feb 20, 2020
- Hewlett-Packard Development Company, L.P.
- Eric T. Martin
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
SWITCHES FOR BYPASS CAPACITORS
- Publication number 20190235558
- Publication date Aug 1, 2019
- Hewlett-Packard Development Company, L.P.
- James Michael Gardner
- G05 - CONTROLLING REGULATING
Information Patent Application
MODIFYING FIRING PARAMETERS FOR PRINTHEADS
- Publication number 20190111676
- Publication date Apr 18, 2019
- Hewlett-Packard Development Company, L.P.
- Gerard Alzona
- G01 - MEASURING TESTING
Information Patent Application
PRINTHEADS WITH SENSOR PLATE IMPEDANCE MEASUREMENT
- Publication number 20180297370
- Publication date Oct 18, 2018
- Hewlett-Packard Development Company, L.P.
- Adam L. Ghozeil
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
DETECTING A DRIVE BUBBLE FORMATION AND COLLAPSE
- Publication number 20180162124
- Publication date Jun 14, 2018
- Hewlett-Packard Development Company, L.P.
- Eric T. Martin
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
PRINTER FLUID IMPEDANCE SENSING IN A PRINTHEAD
- Publication number 20180022091
- Publication date Jan 25, 2018
- Hewlett-Packard Development Company, L.P.
- Gerard Alzona
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
FLUID EJECTION APPARATUS WITH SINGLE POWER SUPPLY CONNECTOR
- Publication number 20180001634
- Publication date Jan 4, 2018
- Hewlett-Packard Development Company, L.P.
- Adam L. Ghozeil
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
FLUID EJECTION APPARATUS WITH SINGLE-SIDE THERMAL SENSOR
- Publication number 20180001628
- Publication date Jan 4, 2018
- Hewlett-Packard Development Company, L.P.
- David Maxfield
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LIQUID PROPELLING COMPONENT
- Publication number 20170326884
- Publication date Nov 16, 2017
- Hewlett-Packard Development Company, L.P.
- Vincent C Korthuis
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
FLUID EJECTION APPARATUS WITH SINGLE-SIDE THERMAL SENSOR
- Publication number 20170217165
- Publication date Aug 3, 2017
- Hewlett-Packard Development Company, L.P.
- David Maxfield
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
PRINTHEAD ASSEMBLY
- Publication number 20170157940
- Publication date Jun 8, 2017
- Hewlett-Packard Development Company, L.P.
- David Maxfield
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
PRINTHEADS WITH SENSOR PLATE IMPEDANCE MEASUREMENT
- Publication number 20170028738
- Publication date Feb 2, 2017
- Hewlett-Packard Development Company, L.P.
- Adam L. Ghozeil
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
FLUID EJECTION APPARATUS WITH SINGLE-SIDE THERMAL SENSOR
- Publication number 20170021614
- Publication date Jan 26, 2017
- Hewlett-Packard Development Company, L.P.
- David Maxfield
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
FLUID EJECTION APPARATUS WITH SINGLE POWER SUPPLY CONNECTOR
- Publication number 20170021617
- Publication date Jan 26, 2017
- Hewlett-Packard Development Company, L.P.
- Adam L. Ghozeil
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
DETERMINING AN ISSUE IN AN INKJET NOZZLE WITH IMPEDANCE MEASUREMENTS
- Publication number 20170008285
- Publication date Jan 12, 2017
- Hewlett-Packard Development Company, L.P.
- Andrew L. Van Brocklin
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Detecting a Drive Bubble Formation and Collapse
- Publication number 20160271940
- Publication date Sep 22, 2016
- Hewlett-Packard Development Company, L.P.
- Eric T. Martin
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
DETERMINING AN ISSUE IN AN INKJET NOZZLE WITH IMPEDANCE MEASUREMENTS
- Publication number 20160082725
- Publication date Mar 24, 2016
- Hewlett-Packard Development Company, L.P.
- Andrew L. Van Brocklin
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Determining an Issue in an Inkjet Nozzle with Impedance Measurements
- Publication number 20150029252
- Publication date Jan 29, 2015
- Hewlett-Packard Development Company, L.P.
- Andrew L. Van Brocklin
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Detecting a Drive Bubble Formation and Collapse
- Publication number 20140333694
- Publication date Nov 13, 2014
- Hewlett-Packard Development Company, L.P.
- Eric T. Martin
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
PRINTHEAD ASSEMBLY
- Publication number 20130328970
- Publication date Dec 12, 2013
- David Maxfield
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Determining an Issue with an Inkjet Nozzle Using an Impedance Diffe...
- Publication number 20130278656
- Publication date Oct 24, 2013
- Alexander Govyadinov
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Calibrating a Program that Detects a Condition of an Inkjet Nozzle
- Publication number 20130278657
- Publication date Oct 24, 2013
- Eric T. Martin
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
METHOD OF DISPENSING LIQUID
- Publication number 20110121021
- Publication date May 26, 2011
- HEWLETT-PACKARD DEVELOPMENT COMPANY LP
- Christie Dudenhoefer
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Firing Cell
- Publication number 20110080454
- Publication date Apr 7, 2011
- Adam L. Ghozeil
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

David Maxfield

Person

Patents Grantslast 30 patents

Detecting a drive bubble formation and collapse

Modifying firing parameters for printheads

Detecting a drive bubble formation and collapse

Liquid propelling component

Printheads with sensor plate impedance measurement

Printer fluid impedance sensing in a printhead

Fluid ejection apparatus with single power supply connector

Printhead assembly

Printheads with sensor plate impedance measurement

Fluid ejection apparatus with single-side thermal sensor

Detecting a drive bubble formation and collapse

Fluid ejection apparatus with single power supply connector

Fluid ejection apparatus with single-side thermal sensor

Determining an issue in an inkjet nozzle with impedance measurements

Fluid ejection apparatus with single-side thermal sensor

Printhead assembly

Determining an issue in an inkjet nozzle with impedance measurements

Detecting a drive bubble formation and collapse

Determining an issue in an inkjet nozzle with impedance measurements

Determining an issue with an inkjet nozzle using an impedance diffe...

Calibrating a program that detects a condition of an inkjet nozzle

Firing cell

Method of dispensing liquid

Patents Applicationslast 30 patents

DETECTING A DRIVE BUBBLE FORMATION AND COLLAPSE

SWITCHES FOR BYPASS CAPACITORS

MODIFYING FIRING PARAMETERS FOR PRINTHEADS

PRINTHEADS WITH SENSOR PLATE IMPEDANCE MEASUREMENT

DETECTING A DRIVE BUBBLE FORMATION AND COLLAPSE

PRINTER FLUID IMPEDANCE SENSING IN A PRINTHEAD

FLUID EJECTION APPARATUS WITH SINGLE POWER SUPPLY CONNECTOR

FLUID EJECTION APPARATUS WITH SINGLE-SIDE THERMAL SENSOR

LIQUID PROPELLING COMPONENT

FLUID EJECTION APPARATUS WITH SINGLE-SIDE THERMAL SENSOR

PRINTHEAD ASSEMBLY

PRINTHEADS WITH SENSOR PLATE IMPEDANCE MEASUREMENT

FLUID EJECTION APPARATUS WITH SINGLE-SIDE THERMAL SENSOR

FLUID EJECTION APPARATUS WITH SINGLE POWER SUPPLY CONNECTOR

DETERMINING AN ISSUE IN AN INKJET NOZZLE WITH IMPEDANCE MEASUREMENTS

Detecting a Drive Bubble Formation and Collapse

DETERMINING AN ISSUE IN AN INKJET NOZZLE WITH IMPEDANCE MEASUREMENTS

Determining an Issue in an Inkjet Nozzle with Impedance Measurements

Detecting a Drive Bubble Formation and Collapse

PRINTHEAD ASSEMBLY

Determining an Issue with an Inkjet Nozzle Using an Impedance Diffe...

Calibrating a Program that Detects a Condition of an Inkjet Nozzle

METHOD OF DISPENSING LIQUID

Firing Cell