Inventor · disambiguated record
John A. Underwood
Also filed as: UNDERWOOD JOHN · UNDERWOOD JOHN A · UNDERWOOD JOHN ANTHONY
48 granted patents·5 pending applications·1,511 citations·filing 1989–2022
99Inventor score
Files withHEWLETT PACKARD CO26HEWLETT PACKARD DEVELOPMENT CO10MICROSOFT CORP4UNDERWOOD JOHN ANTHONY3VALVE CORP3
Top patents by PatentIndex Score
53 records- 0197US11442280B2Adjustable head-mounted display to accommodate different head and face sizesVALVE CORP·Filed 2020·Granted Sep 13, 2022·8 cites·20 claims
- 0297US5956057AInk container having electronic and mechanical features enabling plug compatibility between multiple supply sizesHEWLETT PACKARD CO·Filed 1997·Granted Sep 21, 1999·110 cites·29 claims
- 0396US6203147B1Electrical and fluidic interface for an ink supplyHEWLETT PACKARD CO·Filed 1997·Granted Mar 20, 2001·135 cites·17 claims
- 0496US6183077B1Method and apparatus for keying ink supply containersHEWLETT PACKARD CO·Filed 1998·Granted Feb 6, 2001·114 cites·26 claims
- 0596US5547181AMedia sheet pick and feed systemHEWLETT PACKARD CO·Filed 1995·Granted Aug 20, 1996·76 cites·8 claims
- 0695US6554390B2Test pattern implementation for ink-jet printhead alignmentHEWLETT PACKARD CO·Filed 2001·Granted Apr 29, 2003·63 cites·17 claims
- 0795US6033064AInkjet printer with off-axis ink supplyHEWLETT PACKARD CO·Filed 1996·Granted Mar 7, 2000·123 cites·31 claims
- 0895US4990011ASheet alignment using reverse advance roll and stationary pick rollHEWLETT PACKARD CO·Filed 1989·Granted Feb 5, 1991·60 cites·20 claims
- 0993US6364472B1Method and apparatus for keying ink supply containersHEWLETT PACKARD CO·Filed 2001·Granted Apr 2, 2002·46 cites·20 claims
- 1093US6109722AInk jet printing system with pen alignment and methodHEWLETT PACKARD CO·Filed 1997·Granted Aug 29, 2000·89 cites·20 claims
- 1192US6234602B1Automated ink-jet printhead alignment systemHEWLETT PACKARD CO·Filed 1999·Granted May 22, 2001·84 cites·29 claims
- 1291US6142617AInk container configured for use with compact supply stationHEWLETT PACKARD CO·Filed 1997·Granted Nov 7, 2000·67 cites·15 claims
- 1389US6386692B1Ink container configured for use with compact supply stationHEWLETT PACKARD CO·Filed 2000·Granted May 14, 2002·31 cites·14 claims
- 1488US6322065B1Hinged-arm pick mechanismHEWLETT PACKARD CO·Filed 1999·Granted Nov 27, 2001·31 cites·15 claims
- 1587US6866259B2Hinged-arm pick mechanismHEWLETT PACKARD DEVELOPMENT CO·Filed 2003·Granted Mar 15, 2005·18 cites·7 claims
- 1686US6397023B1Techniques for achieving correct order in printer outputHEWLETT PACKARD CO·Filed 2000·Granted May 28, 2002·23 cites·12 claims
- 1783US6659582B2Apparatus and method for fortification of black pigment based ink using black dye based inkHEWLETT PACKARD DEVELOPMENT CO·Filed 2001·Granted Dec 9, 2003·13 cites·3 claims
- 1882US6637743B2Hinged-arm pick mechanismHEWLETT PACKARD DEVELOPMENT CO·Filed 2001·Granted Oct 28, 2003·16 cites·16 claims
- 1982US6487382B2Techniques for achieving correct order in printer outputHEWLETT PACKARD CO·Filed 2002·Granted Nov 26, 2002·18 cites·10 claims
- 2080US6305795B2Ink container having electronic and mechanical features enabling plug compatibility between multiple supply sizesFiled 1999·Granted Oct 23, 2001·35 cites·28 claims
- 2180US6079807APrint mode mapping for plain paper and transparencyHEWLETT PACKARD CO·Filed 1997·Granted Jun 27, 2000·47 cites·6 claims
- 2279USD784998SDocking mountMICROSOFT CORP·Filed 2016·Granted Apr 25, 2017·20 cites·1 claims
- 2379USD784999SDocking mountMICROSOFT CORP·Filed 2016·Granted Apr 25, 2017·20 cites·1 claims
- 2478US6793329B2Electrical and fluidic interface for an ink supplyHEWLETT PACKARD DEVELOPMENT CO·Filed 2001·Granted Sep 21, 2004·16 cites·12 claims
- 2577US6357848B1Apparatus and method for reducing edge margin tolerances in a printing device with one or more supplies of print mediaHEWLETT PACKARD CO·Filed 1999·Granted Mar 19, 2002·34 cites·18 claims
- 2677US6347856B1Test pattern implementation for ink-jet printhead alignmentHEWLETT PACKARD CO·Filed 1999·Granted Feb 19, 2002·32 cites·11 claims
- 2776USD782491SDocking mountMICROSOFT CORP·Filed 2016·Granted Mar 28, 2017·17 cites·1 claims
- 2875US7054034B2Printing apparatus and method for generating direction dependent color mapHEWLETT PACKARD DEVELOPMENT CO·Filed 2001·Granted May 30, 2006·14 cites·27 claims
- 2971US5844579AOut-of-ink sensing system for an ink-jet printerHEWLETT PACKARD CO·Filed 1995·Granted Dec 1, 1998·29 cites·4 claims
- 3069US2023004013A1Adjustable head-mounted display to accommodate different head and face sizesVALVE CORP·Filed 2022·Application pending·0 cites
- 3166USD782492SDocking mountMICROSOFT CORP·Filed 2016·Granted Mar 28, 2017·11 cites·1 claims
- 3266US7543812B2Media registration devicesHEWLETT PACKARD DEVELOPMENT CO·Filed 2006·Granted Jun 9, 2009·5 cites·20 claims
- 3366US6575545B2Impact reduction of slew decap by multi-dottingHEWLETT PACKARD CO·Filed 2001·Granted Jun 10, 2003·10 cites·36 claims
- 3466US5774154AApparatus for priming an ink delivery system in an ink-jet printerHEWLETT PACKARD CO·Filed 1996·Granted Jun 30, 1998·23 cites·8 claims
- 3561US6779864B2Apparatus and method for fortification of black pigment based ink using black dye based inkHEWLETT PACKARD DEVELOPMENT CO·Filed 2003·Granted Aug 24, 2004·6 cites·22 claims
- 3660US7014295B2System and method for producing efficient ink drop overlap filled with a pseudo hexagonal grid patternHEWLETT PACKARD DEVELOPMENT CO·Filed 2003·Granted Mar 21, 2006·6 cites·13 claims
- 3760US5844580AInk container configured for use with a printing device having an out-of-ink sensing systemHEWLETT PACKARD CO·Filed 1997·Granted Dec 1, 1998·19 cites·23 claims
- 3859US6659589B2System and method for producing efficient ink drop overlap filled with a pseudo hexagonal grid patternHEWLETT PACKARD DEVELOPMENT CO·Filed 2001·Granted Dec 9, 2003·6 cites·26 claims
- 3955US11789277B2Adjustable head-mounted displayVALVE CORP·Filed 2021·Granted Oct 17, 2023·0 cites·20 claims
- 4055US9237428B2Extended messaging platformUNDERWOOD JOHN ANTHONY·Filed 2009·Granted Jan 12, 2016·2 cites·33 claims
- 4155US6312116B2Ink cartridge having an integral pressurization apparatusHEWLETT PACKARD CO·Filed 1998·Granted Nov 6, 2001·14 cites·18 claims
- 4255US6206594B1Print media level sensor and method for use in printing devicesHEWLETT PACKARD CO·Filed 1999·Granted Mar 27, 2001·10 cites·9 claims
- 4354US2018359200A1System and method for facilitating the growth of a mobile communityPHENIX INVESTMENT MAN LTD·Filed 2018·Application pending·0 cites
- 4452US6345877B2Automated ink-jet printhead alignment systemHEWLETT PACKARD CO·Filed 2001·Granted Feb 12, 2002·4 cites·15 claims
- 4546US10069768B2System and method for facilitating the growth of a mobile communityUNDERWOOD JOHN ANTHONY·Filed 2009·Granted Sep 4, 2018·0 cites·32 claims
- 4641US8804160B2Method for providing printing services and printing control method for controlling a key to acquire additional authorized pages as neededHON HAI PREC IND CO LTD·Filed 2013·Granted Aug 12, 2014·0 cites·14 claims
- 4738US8798001B2Message routing platformUNDERWOOD JOHN ANTHONY·Filed 2009·Granted Aug 5, 2014·0 cites·23 claims
- 4838US7225738B2Eye marks in image processingHEWLETT PACKARD DEVELOPMENT CO·Filed 2003·Granted Jun 5, 2007·3 cites·15 claims
- 4935US2018135590A1Controlling Engine IgnitionWOODWARD INC·Filed 2016·Application pending·0 cites
- 5034US9769678B2Network monitoring and analysis tool3RD BRAND PTE LTD·Filed 2013·Granted Sep 19, 2017·0 cites·17 claims
Showing the top 50 of 53 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →