Inventor · disambiguated record
Kenneth E. Trueba
Also filed as: TRUEBA KENNETH · TRUEBA KENNETH E
58 granted patents·4 pending applications·3,853 citations·filing 1987–2014
99Inventor score
Files withHEWLETT PACKARD CO36HEWLETT PACKARD DEVELOPMENT CO9GILSON CHARLES W4VIDEOJET TECHNOLOGIES INC3FOLKERS JOHN P2
Top patents by PatentIndex Score
62 records- 0199US6017117APrinthead with pump driven ink circulationHEWLETT PACKARD CO·Filed 1995·Granted Jan 25, 2000·463 cites·6 claims
- 0299US5278584AInk delivery system for an inkjet printheadHEWLETT PACKARD CO·Filed 1992·Granted Jan 11, 1994·381 cites·12 claims
- 0398US6003977ABubble valving for ink-jet printheadsHEWLETT PACKARD CO·Filed 1996·Granted Dec 21, 1999·228 cites·14 claims
- 0498US5387314AFabrication of ink fill slots in thermal ink-jet printheads utilizing chemical micromachiningHEWLETT PACKARD CO·Filed 1993·Granted Feb 7, 1995·287 cites·18 claims
- 0597US5560837AMethod of making ink-jet componentHEWLETT PACKARD CO·Filed 1994·Granted Oct 1, 1996·144 cites·18 claims
- 0697US4882595AHydraulically tuned channel architectureHEWLETT PACKARD CO·Filed 1989·Granted Nov 21, 1989·182 cites·16 claims
- 0796US5635968AThermal inkjet printer printhead with offset heater resistorsHEWLETT PACKARD CO·Filed 1994·Granted Jun 3, 1997·171 cites·14 claims
- 0894US8272704B2Ink containment system and ink level sensing system for an inkjet cartridgeGILSON CHARLES W·Filed 2009·Granted Sep 25, 2012·26 cites·9 claims
- 0994US6000787ASolid state ink jet print headHEWLETT PACKARD CO·Filed 1996·Granted Dec 14, 1999·94 cites·29 claims
- 1093US5594481AInk channel structure for inkjet printheadHEWLETT PACKARD CO·Filed 1994·Granted Jan 14, 1997·96 cites·19 claims
- 1193US5441593AFabrication of ink fill slots in thermal ink-jet printheads utilizing chemical micromachiningHEWLETT PACKARD CORP·Filed 1994·Granted Aug 15, 1995·78 cites·7 claims
- 1293US5167776AThermal inkjet printhead orifice plate and method of manufactureHEWLETT PACKARD CO·Filed 1991·Granted Dec 1, 1992·74 cites·11 claims
- 1392US5608436AInkjet printer printhead having equalized shelf lengthHEWLETT PACKARD CO·Filed 1994·Granted Mar 4, 1997·73 cites·5 claims
- 1492US5417897AMethod for forming tapered inkjet nozzlesHEWLETT PACKARD CO·Filed 1994·Granted May 23, 1995·86 cites·11 claims
- 1591US7198044B2Applicator for dispensing bioactive compositions and methods for using the sameHEWLETT PACKARD DEVELOPMENT CO·Filed 2003·Granted Apr 3, 2007·148 cites·52 claims
- 1691US5635966AEdge feed ink delivery thermal inkjet printhead structure and method of fabricationHEWLETT PACKARD CO·Filed 1994·Granted Jun 3, 1997·91 cites·10 claims
- 1791US5604519AInkjet printhead architecture for high frequency operationHEWLETT PACKARD CO·Filed 1994·Granted Feb 18, 1997·83 cites·22 claims
- 1890US5648805AInkjet printhead architecture for high speed and high resolution printingHEWLETT PACKARD CO·Filed 1994·Granted Jul 15, 1997·77 cites·20 claims
- 1989US6684880B2Applicator for dispensing bioactive compositions and methods for using the sameHEWLETT PACKARD DEVELOPMENT CO·Filed 2001·Granted Feb 3, 2004·131 cites·30 claims
- 2089US5638101AHigh density nozzle array for inkjet printheadHEWLETT PACKARD CO·Filed 1994·Granted Jun 10, 1997·69 cites·16 claims
- 2188US5648804ACompact inkjet substrate with centrally located circuitry and edge feed ink channelsHEWLETT PACKARD CO·Filed 1994·Granted Jul 15, 1997·61 cites·44 claims
- 2288US5420627AInkjet printheadHEWLETT PACKARD CO·Filed 1992·Granted May 30, 1995·65 cites·15 claims
- 2387US7490924B2Drop generator for ultra-small dropletsHEWLETT PACKARD DEVELOPMENT CO·Filed 2006·Granted Feb 17, 2009·38 cites·16 claims
- 2487US5519423ATuned entrance fang configuration for ink-jet printersHEWLETT PACKARD CO·Filed 1994·Granted May 21, 1996·62 cites·24 claims
- 2586US6305790B1Fully integrated thermal inkjet printhead having multiple ink feed holes per nozzleHEWLETT PACKARD CO·Filed 1999·Granted Oct 23, 2001·53 cites·26 claims
- 2685US8091993B2Ink containment system and ink level sensing system for an inkjet cartridgeGILSON CHARLES W·Filed 2008·Granted Jan 10, 2012·8 cites·12 claims
- 2785US6698868B2Thermal drop generator for ultra-small dropletsHEWLETT PACKARD DEVELOPMENT CO·Filed 2001·Granted Mar 2, 2004·27 cites·9 claims
- 2885US6227660B1Printhead with pump driven ink circulationHEWLETT PACKARD CO·Filed 1999·Granted May 8, 2001·41 cites·11 claims
- 2984US7763668B2Curable thermally ejectable printing fluidIMTECH INC·Filed 2006·Granted Jul 27, 2010·6 cites·40 claims
- 3083US6183076B1Printer having multi-chamber print cartridges and off-carriage regulatorHEWLETT PACKARD CO·Filed 1996·Granted Feb 6, 2001·46 cites·24 claims
- 3183US4829319APlastic orifice plate for an ink jet printhead and method of manufactureHEWLETT PACKARD CO·Filed 1987·Granted May 9, 1989·38 cites·24 claims
- 3282US5300959AEfficient conductor routing for inkjet printheadHEWLETT PACKARD CO·Filed 1992·Granted Apr 5, 1994·46 cites·20 claims
- 3381US6543884B1Fully integrated thermal inkjet printhead having etched back PSG layerHEWLETT PACKARD CO·Filed 1999·Granted Apr 8, 2003·37 cites·21 claims
- 3481US5378137AMask design for forming tapered inkjet nozzlesHEWLETT PACKARD CO·Filed 1993·Granted Jan 3, 1995·38 cites·8 claims
- 3580US8794750B2Ink containment system and ink level sensing system for an inkjet cartridgeVIDEOJET TECHNOLOGIES INC·Filed 2013·Granted Aug 5, 2014·2 cites·10 claims
- 3679US6402972B1Solid state ink jet print head and method of manufactureHEWLETT PACKARD CO·Filed 1999·Granted Jun 11, 2002·33 cites·10 claims
- 3777US8454149B2Thermal inkjet print head with solvent resistanceLAMBRIGHT TERRY M·Filed 2010·Granted Jun 4, 2013·3 cites·21 claims
- 3877US6179414B1Ink delivery system for an inkjet printheadHEWLETT PACKARD CO·Filed 1999·Granted Jan 30, 2001·34 cites·17 claims
- 3975US6557971B1Method for servicing an inkjet printheadHEWLETT PACKARD CO·Filed 2000·Granted May 6, 2003·15 cites·15 claims
- 4075US6336714B1Fully integrated thermal inkjet printhead having thin film layer shelfHEWLETT PACKARD CO·Filed 1999·Granted Jan 8, 2002·31 cites·14 claims
- 4175US5563642AInkjet printhead architecture for high speed ink firing chamber refillHEWLETT PACKARD CO·Filed 1994·Granted Oct 8, 1996·28 cites·22 claims
- 4272US6767474B2Fluid ejector head having a planar passivation layerHEWLETT PACKARD DEVELOPMENT CO·Filed 2002·Granted Jul 27, 2004·12 cites·26 claims
- 4371US8733900B2Thermal inkjet print head with solvent resistanceVIDEOJET TECHNOLOGIES INC·Filed 2013·Granted May 27, 2014·1 cites·18 claims
- 4471US5369428ABidirectional ink jet printingHEWLETT PACKARD CORP·Filed 1992·Granted Nov 29, 1994·27 cites·11 claims
- 4570US7125731B2Drop generator for ultra-small dropletsHEWLETT PACKARD DEVELOPMENT CO·Filed 2003·Granted Oct 24, 2006·10 cites·18 claims
- 4669US8960886B2Thermal inkjet print head with solvent resistanceVIDEOJET TECHNOLOGIES INC·Filed 2014·Granted Feb 24, 2015·1 cites·20 claims
- 4769US6918657B2Fully integrated thermal inkjet printhead having etched back PSG layerHEWLETT PACKARD DEVELOPMENT CO·Filed 2003·Granted Jul 19, 2005·10 cites·20 claims
- 4869US5619236ASelf-cooling printhead structure for inkjet printer with high density high frequency firing chambersHEWLETT PACKARD CO·Filed 1996·Granted Apr 8, 1997·23 cites·26 claims
- 4966US5988786AArticulated stress relief of an orifice membraneHEWLETT PACKARD CO·Filed 1997·Granted Nov 23, 1999·24 cites·17 claims
- 5066US5953029AInk delivery system for an inkjet printheadHEWLETT PACKARD CO·Filed 1997·Granted Sep 14, 1999·18 cites·12 claims
Showing the top 50 of 62 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →