Inventor · disambiguated record
Steven T. Castle
Also filed as: CASTLE STEVEN T · CASTLE STEVEN TODD
24 granted patents·8 pending applications·528 citations·filing 1992–2025
95Inventor score
Files withHEWLETT PACKARD DEVELOPMENT CO19HEWLETT PACKARD CO5LEISER JUDSON M2BRUCE IND INC1CASTLE STEVEN T1
Top patents by PatentIndex Score
32 records- 0196US7497977B2Methods and systems for producing an object through solid freeform fabrication by varying a concentration of ejected material applied to an object layerHEWLETT PACKARD DEVELOPMENT CO·Filed 2003·Granted Mar 3, 2009·94 cites·5 claims
- 0293US6431673B1Ink level gauging in inkjet printingHEWLETT PACKARD CO·Filed 2000·Granted Aug 13, 2002·58 cites·20 claims
- 0393US6109723AMethod and apparatus for determining an optimum print density for an ink jet printerHEWLETT PACKARD CO·Filed 1998·Granted Aug 29, 2000·93 cites·15 claims
- 0492US6533393B1Printer with multiple printmodes per swathHEWLETT PACKARD CO·Filed 2000·Granted Mar 18, 2003·48 cites·23 claims
- 0591US5328152AFluid control valve unitBRUCE IND INC·Filed 1992·Granted Jul 12, 1994·101 cites·20 claims
- 0684US6145959ASwath density control to improve print quality and extend printhead life in inkjet printersHEWLETT PACKARD CO·Filed 1997·Granted Nov 14, 2000·49 cites·44 claims
- 0776US2025353307A1Reprocessing of a replaceable supply componentHEWLETT PACKARD DEVELOPMENT CO·Filed 2025·Application pending·0 cites
- 0875US10589530B2Printer cartridge with multiple backpressure chambersHEWLETT PACKARD DEVELOPMENT CO·Filed 2015·Granted Mar 17, 2020·1 cites·20 claims
- 0974US6302505B1Printing system that utilizes continuous and non-continuous firing frequenciesHEWLETT PACKARD CO·Filed 2000·Granted Oct 16, 2001·15 cites·36 claims
- 1068US7399047B2Consumable cartridge with theft deterrence featuresHEWLETT PACKARD DEVELOPMENT CO·Filed 2004·Granted Jul 15, 2008·11 cites·13 claims
- 1163US7611222B2Nozzle shield assemblyHEWLETT PACKARD DEVELOPMENT CO·Filed 2004·Granted Nov 3, 2009·11 cites·21 claims
- 1261US12403700B2Reprocessing of a replaceable supply componentHEWLETT PACKARD DEVELOPMENT CO·Filed 2021·Granted Sep 2, 2025·0 cites·15 claims
- 1361US11260670B2Fluid reservoir impedance sensorsHEWLETT PACKARD DEVELOPMENT CO·Filed 2017·Granted Mar 1, 2022·0 cites·20 claims
- 1461US10232629B2Container assemblyHEWLETT PACKARD DEVELOPMENT CO·Filed 2018·Granted Mar 19, 2019·0 cites·14 claims
- 1558US9925782B2Container assemblyHEWLETT PACKARD DEVELOPMENT CO·Filed 2014·Granted Mar 27, 2018·0 cites·19 claims
- 1657US11364721B2Print liquid supply interconnect in hose-fed housingHEWLETT PACKARD DEVELOPMENT CO·Filed 2018·Granted Jun 21, 2022·0 cites·22 claims
- 1752US7229144B2Method for aligning multiple nozzle members in a solid free form fabrication toolNIELSEN JEFFREY ALLEN·Filed 2002·Granted Jun 12, 2007·19 cites·39 claims
- 1851US12425231B2Logic circuitryHEWLETT PACKARD DEVELOPMENT CO·Filed 2021·Granted Sep 23, 2025·0 cites·26 claims
- 1950USRE40294EServicing system for an inkjet printheadHEWLETT PACKARD DEVELOPMENT CO·Filed 2001·Granted May 6, 2008·4 cites·39 claims
- 2048US12472749B2Appending data on a replaceable supply componentHEWLETT PACKARD DEVELOPMENT CO·Filed 2021·Granted Nov 18, 2025·0 cites·15 claims
- 2145US7959245B2Device and method for measuring ink levels in a containerHEWLETT PACKARD DEVELOPMENT CO·Filed 2007·Granted Jun 14, 2011·0 cites·24 claims
- 2244US7645403B2Method of improving color quality in an object produced by solid freeform fabricationHEWLETT PACKARD DEVELOPMENT CO·Filed 2003·Granted Jan 12, 2010·7 cites·40 claims
- 2344US5435778ARotary coin counterINT GAME TECH·Filed 1993·Granted Jul 25, 1995·10 cites·30 claims
- 2442US7306758B2Methods and systems for controlling printhead temperature in solid freeform fabricationHEWLETT PACKARD DEVELOPMENT CO·Filed 2003·Granted Dec 11, 2007·7 cites·8 claims
- 2542US2021245520A1Print liquid supply interconnect with keyed slotsHEWLETT PACKARD DEVELOPMENT CO·Filed 2018·Application pending·0 cites
- 2642US2024111905A1Generating a request for reprocessing of a replaceable supply componentHEWLETT PACKARD DEVELOPMENT CO·Filed 2021·Application pending·0 cites
- 2740US2020346467A1Fluid reservoirsHEWLETT PACKARD DEVELOPMENT CO·Filed 2017·Application pending·0 cites
- 2839US2006204867A1Material deposition method and/or system for layers including repetitive featuresLEISER JUDSON M·Filed 2005·Application pending·0 cites
- 2936US2006204868A1Material deposition method and/or systemLEISER JUDSON M·Filed 2005·Application pending·0 cites
- 3035US2005243118A1Consumable cartridge theft deterrence apparatus and methodsWARD JEFFERSON P·Filed 2004·Application pending·0 cites
- 3134US2013104760A1Web press and a method of duplex printingMALIK CRAIG L·Filed 2010·Application pending·0 cites
- 3225US7360879B2Inkjet pen adapterCASTLE STEVEN T·Filed 2004·Granted Apr 22, 2008·0 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →