Inventor · disambiguated record
David Tyvoll
Also filed as: TYVOLL DAVID · TYVOLL DAVID A · TYVOLL DAVID ALVIN
55 granted patents·8 pending applications·871 citations·filing 1999–2023
99Inventor score
Files withHEWLETT PACKARD DEVELOPMENT CO36LOVE JOHN CHRISTIAN7ALFRED E MANN INSTITUTE FOR BIOMEDICAL ENGINEERING AT THE UNIV OF SOUTHERN CALIFORNIA4MEMJET TECHNOLOGY LTD4CHILDERS WINTHROP D2
Top patents by PatentIndex Score
63 records- 0198US7459491B2Pigment dispersions that exhibit variable particle size or variable vicosityHEWLETT PACKARD DEVELOPMENT CO·Filed 2005·Granted Dec 2, 2008·73 cites·42 claims
- 0296US9221261B2Printer having sled providing wiping, capping and platen modulesMEMJET TECHNOLOGY LTD·Filed 2015·Granted Dec 29, 2015·7 cites·7 claims
- 0396US7591889B2Dissimilar pigments for use in dark and light inkjet inksHEWLETT PACKARD DEVELOPMENT CO·Filed 2005·Granted Sep 22, 2009·23 cites·65 claims
- 0496US7497334B2Sorting particlesHEWLETT PACKARD DEVELOPMENT CO·Filed 2007·Granted Mar 3, 2009·31 cites·15 claims
- 0594US9150034B2Apparatus for assisting printing having proximal wickLOVE JOHN CHRISTIAN·Filed 2011·Granted Oct 6, 2015·7 cites·7 claims
- 0693US8523316B2Maintenance system having modular sledLOVE JOHN CHRISTIAN·Filed 2011·Granted Sep 3, 2013·5 cites·5 claims
- 0792US7005003B2Inkjet inks having cyan, yellow, magenta, and/or black colorants and methods of using the same to produce black and white imagesHEWLETT PACKARD DEVELOPMENT CO·Filed 2003·Granted Feb 28, 2006·35 cites·24 claims
- 0891US8641167B2Maintenance apparatus having rotatable wiper for printheadLOVE JOHN CHRISTIAN·Filed 2011·Granted Feb 4, 2014·4 cites·9 claims
- 0991US7338637B2Microfluidic device with thin-film electronic devicesHEWLETT PACKARD DEVELOPMENT CO·Filed 2003·Granted Mar 4, 2008·105 cites·29 claims
- 1090US6648951B2Waterfest, environmentally friendly inks adapted for point-of-sale ink-jet applicationsHEWLETT PACKARD DEVELOPMENT CO·Filed 2001·Granted Nov 18, 2003·32 cites·23 claims
- 1189US7776559B2Disposable blood test deviceHEWLETT PACKARD DEVELOPMENT CO·Filed 2004·Granted Aug 17, 2010·37 cites·13 claims
- 1289US7217542B2Microfluidic system for analyzing nucleic acidsHEWLETT PACKARD DEVELOPMENT CO·Filed 2002·Granted May 15, 2007·73 cites·21 claims
- 1389US6176908B1Aqueous ink jet inks for postal meteringDU PONT·Filed 1999·Granted Jan 23, 2001·57 cites·8 claims
- 1487US11230787B2Metal oxide nanostructured surfacesALFRED E MANN INSTITUTE FOR BIOMEDICAL ENGINEERING AT THE UNIV OF SOUTHERN CALIFORNIA·Filed 2018·Granted Jan 25, 2022·2 cites·14 claims
- 1586US7741123B2Microfluidic device with thin-film electronic devicesHEWLETT PACKARD DEVELOPMENT CO·Filed 2008·Granted Jun 22, 2010·13 cites·18 claims
- 1685US8833919B2Method of shaping media at printheadLOVE JOHN CHRISTIAN·Filed 2011·Granted Sep 16, 2014·2 cites·3 claims
- 1785US7690741B2Introducing ink into an ink cartridgeHEWLETT PACKARD DEVELOPMENT CO·Filed 2006·Granted Apr 6, 2010·7 cites·23 claims
- 1882US7390388B2Method of sorting cells on a biodeviceHEWLETT PACKARD DEVELOPMENT CO·Filed 2004·Granted Jun 24, 2008·26 cites·25 claims
- 1979US7390387B2Method of sorting cells in seriesHEWLETT PACKARD DEVELOPMENT CO·Filed 2004·Granted Jun 24, 2008·25 cites·19 claims
- 2079US7294183B2Activating agents for use with reactive colorants in inkjet printing of textilesHEWLETT PACKARD DEVELOPMENT CO·Filed 2002·Granted Nov 13, 2007·8 cites·16 claims
- 2175US7530352B2Inhalation device and method for delivering variable amounts of different componentsHEWLETT PACKARD DEVELOPMENT CO·Filed 2004·Granted May 12, 2009·56 cites·15 claims
- 2275US7220303B2Pigmented inks having different particle sizes and/or morphologies and distinct chemical dispersionsHEWLETT PACKARD DEVELOPMENT CO·Filed 2004·Granted May 22, 2007·11 cites·17 claims
- 2375US6886557B2Inhalation device and method for delivering variable amounts of different componentsHEWLETT PACKARD DEVELOPMENT CO·Filed 2002·Granted May 3, 2005·52 cites·35 claims
- 2475US6783580B2Environmentally friendly, reliable, fast drying ink for point-of-sale thermal ink jet applicationHEWLETT PACKARD DEVELOPMENT CO·Filed 2002·Granted Aug 31, 2004·21 cites·25 claims
- 2574US8481323B2Systems and methods for measuring glycated hemoglobinTYVOLL DAVID A·Filed 2005·Granted Jul 9, 2013·6 cites·30 claims
- 2674US7389879B2Sorting particlesHEWLETT PACKARD DEVELOPMENT CO·Filed 2004·Granted Jun 24, 2008·25 cites·14 claims
- 2774US7112433B2Electrical analysis of biological membranesHEWLETT PACKARD DEVELOPMENT CO·Filed 2003·Granted Sep 26, 2006·9 cites·18 claims
- 2873US6572226B2Anisotropic colorants for inkjet printingHEWLETT PACKARD DEVELOPMENT CO·Filed 2001·Granted Jun 3, 2003·10 cites·16 claims
- 2968US11441044B2Pigment-based ink formulations having improved printhead lifetimeMEMJET TECHNOLOGY LTD·Filed 2019·Granted Sep 13, 2022·0 cites·20 claims
- 3068US7534618B2Systems and methods for measuring glycated hemoglobinHEWLETT PACKARD DEVELOPMENT CO·Filed 2007·Granted May 19, 2009·2 cites·16 claims
- 3167US2014218453A1System for guiding media past media width printheadZAMTEC LTD·Filed 2014·Application pending·0 cites
- 3266US7932098B2Microfluidic system utilizing thin-film layers to route fluidHEWLETT PACKARD DEVELOPMENT CO·Filed 2002·Granted Apr 26, 2011·8 cites·11 claims
- 3365US7802859B2Refilling a used ink cartridgeHEWLETT PACKARD DEVELOPMENT CO·Filed 2006·Granted Sep 28, 2010·2 cites·14 claims
- 3464US7726303B2Controlled medicament ejectionHEWLETT PACKARD DEVELOPMENT CO·Filed 2003·Granted Jun 1, 2010·26 cites·3 claims
- 3563US11608565B2Metal oxide nanostructured surfacesALFRED E MANN INSTITUTE FOR BIOMEDICAL ENGINEERING AT THE UNIV OF SOUTHERN CALIFORNIA·Filed 2021·Granted Mar 21, 2023·0 cites·7 claims
- 3663US7275534B2Medicament ejector with ejection port servicingHEWLETT PACKARD DEVELOPMENT CO·Filed 2003·Granted Oct 2, 2007·11 cites·6 claims
- 3763US7038867B2Filter for display systemHEWLETT PACKARD DEVELOPMENT CO·Filed 2005·Granted May 2, 2006·1 cites·14 claims
- 3862US9038502B2Control interface activated restraining system to secure a rider's footwear to a foot supportZOUMARAS STEVEN·Filed 2011·Granted May 26, 2015·6 cites·11 claims
- 3961US8764141B2System for shaping media at printheadLOVE JOHN CHRISTIAN·Filed 2011·Granted Jul 1, 2014·0 cites·7 claims
- 4061US8727484B2Maintenance apparatus having multiple fluid absorbers for printheadLOVE JOHN CHRISTIAN·Filed 2011·Granted May 20, 2014·0 cites·4 claims
- 4161US8540340B2Printer having modular maintenance sledLOVE JOHN CHRISTIAN·Filed 2011·Granted Sep 24, 2013·0 cites·11 claims
- 4261US6814852B2Generation of gas in a lab-on-a-chip environmentHEWLETT PACKARD DEVELOPMENT CO·Filed 2002·Granted Nov 9, 2004·4 cites·48 claims
- 4358US10730304B2Method of improving printhead decap performanceMEMJET TECHNOLOGY LTD·Filed 2018·Granted Aug 4, 2020·0 cites·9 claims
- 4458US7232226B2Color-generating device and display systemHEWLETT PACKARD DEVELOPMENT CO·Filed 2003·Granted Jun 19, 2007·2 cites·25 claims
- 4557US7384791B2Method of analyzing bloodHEWLETT PACKARD DEVELOPMENT CO·Filed 2004·Granted Jun 10, 2008·16 cites·24 claims
- 4657US2023366117A1Methods and apparatuses for forming metal oxide nanostructuresALFRED E MANN INSTITUTE FOR BIOMEDICAL ENGINEERING AT THE UNIV OF SOUTHERN CALIFORNIA·Filed 2023·Application pending·0 cites
- 4754US8056556B2Inhaler nozzle maintenance apparatus and methodCHILDERS WINTHROP D·Filed 2004·Granted Nov 15, 2011·8 cites·16 claims
- 4854US2006252111A1Electrical Analysis Of Biological MembranesTYVOLL DAVID·Filed 2006·Application pending·0 cites
- 4953US7243648B2Thermal drop generatorHEWLETT PACKARD DEVELOPMENT CO·Filed 2004·Granted Jul 17, 2007·10 cites·24 claims
- 5053US6920000B2Filter for a display systemHEWLETT PACKARD DEVELOPMENT CO·Filed 2002·Granted Jul 19, 2005·3 cites·19 claims
Showing the top 50 of 63 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →