Inventor · disambiguated record
David Maxfield
Also filed as: MAXFIELD DAVID · MAXFIELD JR DAVID E
28 granted patents·1 pending application·224 citations·filing 1996–2019
96Inventor score
Files withHEWLETT PACKARD DEVELOPMENT CO13HEWLETT PACKARD DEVELOPMENT CO LP5XEROX CORP3MARTIN ERIC T2ACCU TALLY LLC1
Top patents by PatentIndex Score
29 records- 0198US9796178B2Fluid ejection apparatus with single-side thermal sensorHEWLETT PACKARD DEVELOPMENT CO LP·Filed 2017·Granted Oct 24, 2017·34 cites·20 claims
- 0296US9701116B2Determining an issue in an inkjet nozzle with impedance measurementsHEWLETT PACKARD DEVELOPMENT CO LP·Filed 2016·Granted Jul 11, 2017·6 cites·20 claims
- 0395US8899709B2Determining an issue with an inkjet nozzle using an impedance differenceGOVYADINOV ALEXANDER·Filed 2012·Granted Dec 2, 2014·12 cites·19 claims
- 0491US8870322B2Calibrating a program that detects a condition of an inkjet nozzleMARTIN ERIC T·Filed 2012·Granted Oct 28, 2014·15 cites·20 claims
- 0590US9669624B2Fluid ejection apparatus with single-side thermal sensorHEWLETT PACKARD DEVELOPMENT CO LP·Filed 2013·Granted Jun 6, 2017·4 cites·15 claims
- 0689US9610772B2Printhead assemblyMAXFIELD DAVID·Filed 2011·Granted Apr 4, 2017·8 cites·10 claims
- 0786US10493752B2Detecting a drive bubble formation and collapseHEWLETT PACKARD DEVELOPMENT CO·Filed 2018·Granted Dec 3, 2019·1 cites·20 claims
- 0886US9962949B2Printheads with sensor plate impedance measurementHEWLETT PACKARD DEVELOPMENT CO·Filed 2014·Granted May 8, 2018·3 cites·13 claims
- 0985US10082015B2Apparatus for measuring a tubular string as it is lowered into a borehole and methodACCU TALLY LLC·Filed 2016·Granted Sep 25, 2018·16 cites·11 claims
- 1082US10336089B2Printheads with sensor plate impedance measurementHEWLETT PACKARD DEVELOPMENT CO·Filed 2018·Granted Jul 2, 2019·1 cites·4 claims
- 1182US9352564B2Determining an issue in an inkjet nozzle with impedance measurementsVAN BROCKLIN ANDREW L·Filed 2012·Granted May 31, 2016·2 cites·20 claims
- 1281US9796181B2Fluid ejection apparatus with single power supply connectorHEWLETT PACKARD DEVELOPMENT CO LP·Filed 2013·Granted Oct 24, 2017·2 cites·19 claims
- 1380US8333453B2Method of dispensing liquidDUDENHOEFER CHRISTIE·Filed 2008·Granted Dec 18, 2012·6 cites·15 claims
- 1480US6479158B1Fuser member with an amino silane adhesive layer and preparation thereofXEROX CORP·Filed 1997·Granted Nov 12, 2002·31 cites·32 claims
- 1580US5945223AFlow coating solution and fuser member layers prepared therewithXEROX CORP·Filed 1997·Granted Aug 31, 1999·44 cites·21 claims
- 1675US11065867B2Detecting a drive bubble formation and collapseHEWLETT PACKARD DEVELOPMENT CO·Filed 2019·Granted Jul 20, 2021·0 cites·20 claims
- 1771US8511796B2Firing cellGHOZEIL ADAM L·Filed 2008·Granted Aug 20, 2013·4 cites·12 claims
- 1868US5642641ADome shaped extruded location feature tool for making the location feature and method for locating adjoining plates using the location featureXEROX CORP·Filed 1996·Granted Jul 1, 1997·35 cites·18 claims
- 1967US9956771B2Fluid ejection apparatus with single-side thermal sensorHEWLETT PACKARD DEVELOPMENT CO·Filed 2017·Granted May 1, 2018·0 cites·20 claims
- 2066US10654268B2Modifying firing parameters for printheadsHEWLETT PACKARD DEVELOPMENT CO·Filed 2018·Granted May 19, 2020·0 cites·19 claims
- 2165US10029464B2Fluid ejection apparatus with single power supply connectorHEWLETT PACKARD DEVELOPMENT CO·Filed 2017·Granted Jul 24, 2018·0 cites·20 claims
- 2264US9950517B2Detecting a drive bubble formation and collapseHEWLETT PACKARD DEVELOPMENT CO·Filed 2016·Granted Apr 24, 2018·0 cites·19 claims
- 2362US9987850B2Printhead assemblyHEWLETT PACKARD DEVELOPMENT CO·Filed 2017·Granted Jun 5, 2018·0 cites·10 claims
- 2462US9463622B2Determining an issue in an inkjet nozzle with impedance measurementsHEWLETT PACKARD DEVELOPMENT CO LP·Filed 2015·Granted Oct 11, 2016·0 cites·20 claims
- 2557US9409393B2Detecting a drive bubble formation and collapseMARTIN ERIC T·Filed 2012·Granted Aug 9, 2016·0 cites·20 claims
- 2655US10183488B2Printer fluid impedance sensing in a printheadHEWLETT PACKARD DEVELOPMENT CO·Filed 2015·Granted Jan 22, 2019·0 cites·20 claims
- 2750US10725490B2Switches for bypass capacitorsHEWLETT PACKARD DEVELOPMENT CO·Filed 2016·Granted Jul 28, 2020·0 cites·15 claims
- 2849US10369801B2Liquid propelling componentHEWLETT PACKARD DEVELOPMENT CO·Filed 2014·Granted Aug 6, 2019·0 cites·19 claims
- 2937US2021221126A1Thermal management of fluid ejection devicesHEWLETT PACKARD DEVELOPMENT CO·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →