Inventor · disambiguated record
Dan A. Hays
Also filed as: HAYS DAN · HAYS DAN A
85 granted patents·2 pending applications·2,043 citations·filing 1981–2019
99Inventor score
Top patents by PatentIndex Score
87 records- 0199US4868600AScavengeless development apparatus for use in highlight color imagingXEROX CORP·Filed 1988·Granted Sep 19, 1989·177 cites·28 claims
- 0297US7397032B2Nano-structure coated coronodes for low voltage charging devicesXEROX CORP·Filed 2006·Granted Jul 8, 2008·28 cites·19 claims
- 0397US5300339ADevelopment system coatingsXEROX CORP·Filed 1993·Granted Apr 5, 1994·61 cites·9 claims
- 0497US5010367ADual AC development system for controlling the spacing of a toner cloudXEROX CORP·Filed 1989·Granted Apr 23, 1991·62 cites·32 claims
- 0596US10272618B2Fabrication of 3D objects via electrostatic powder depositionXACTIV INC·Filed 2016·Granted Apr 30, 2019·14 cites·21 claims
- 0696US6730450B1Toner compositions comprising polyester resin and poly (3,4-ethylenedioxythiophene)XEROX CORP·Filed 2000·Granted May 4, 2004·58 cites·40 claims
- 0796US6387581B1Toner compositions comprising polyester resin and poly (3,4-ethylenedioxypyrrole)XEROX CORP·Filed 2000·Granted May 14, 2002·58 cites·45 claims
- 0896US6234608B1Magnetically actuated ink jet printing deviceXEROX CORP·Filed 1997·Granted May 22, 2001·201 cites·27 claims
- 0996US4505573AToner charging apparatus containing wear resistant coatingsXEROX CORP·Filed 1983·Granted Mar 19, 1985·55 cites·17 claims
- 1095US10272664B2Fabrication of 3D objects via multiple build platformsXACTIV INC·Filed 2016·Granted Apr 30, 2019·14 cites·17 claims
- 1195US7228091B2Compact charging method and device with gas ions produced by electric field electron emission and ionization from nanotubesXEROX CORP·Filed 2005·Granted Jun 5, 2007·21 cites·24 claims
- 1295US6290342B1Particulate marking material transport apparatus utilizing traveling electrostatic wavesXEROX CORP·Filed 1998·Granted Sep 18, 2001·77 cites·12 claims
- 1394US7398035B2Nanostructure-based solid state charging deviceXEROX CORP·Filed 2006·Granted Jul 8, 2008·16 cites·20 claims
- 1493US7428402B2Carbon nanotube composites for blade cleaning in electrophotographic marking systemsXEROX CORP·Filed 2006·Granted Sep 23, 2008·15 cites·5 claims
- 1592US6340216B1Ballistic aerosol marking apparatus for treating a substrateXEROX CORP·Filed 1998·Granted Jan 22, 2002·83 cites·24 claims
- 1692US4766457AParticulate material dispenserXEROX CORP·Filed 1987·Granted Aug 23, 1988·51 cites·21 claims
- 1791US7149460B2Systems and methods for electron charging particlesXEROX CORP·Filed 2005·Granted Dec 12, 2006·12 cites·22 claims
- 1891US5172170AElectroded donor roll for a scavengeless developer unitXEROX CORP·Filed 1992·Granted Dec 15, 1992·73 cites·16 claims
- 1990US4545669ALow voltage electrophotography with simultaneous photoreceptor charging, exposure and developmentXEROX CORP·Filed 1984·Granted Oct 8, 1985·36 cites·31 claims
- 2090US4459009AApparatus, process for charging toner particlesXEROX CORP·Filed 1981·Granted Jul 10, 1984·34 cites·26 claims
- 2189US8771802B1Device and materials fabrication and patterning via shaped slot electrode control of direct electrostatic powder depositionXACTIV INC·Filed 2013·Granted Jul 8, 2014·5 cites·22 claims
- 2289US7502580B2Two component development system using ion or electron charged tonerXEROX CORP·Filed 2005·Granted Mar 10, 2009·11 cites·19 claims
- 2389US6454384B1Method for marking with a liquid material using a ballistic aerosol marking apparatusXEROX CORP·Filed 1998·Granted Sep 24, 2002·66 cites·22 claims
- 2489US5031570APrinting apparatus and toner/developer delivery system thereforXEROX CORP·Filed 1989·Granted Jul 16, 1991·33 cites·14 claims
- 2588US6467862B1Cartridge for use in a ballistic aerosol marking apparatusXEROX CORP·Filed 1998·Granted Oct 22, 2002·63 cites·57 claims
- 2687US11167477B1Fabrication of 3D objects via direct powder depositionXACTIV INC·Filed 2017·Granted Nov 9, 2021·3 cites·14 claims
- 2787US9168564B1Device and materials fabrication and patterning via shaped slot electrode control of direct electrostatic powder depositionXACTIV INC·Filed 2014·Granted Oct 27, 2015·4 cites·11 claims
- 2885US6416157B1Method of marking a substrate employing a ballistic aerosol marking apparatusXEROX CORP·Filed 1998·Granted Jul 9, 2002·52 cites·42 claims
- 2985US4876575APrinting apparatus including apparatus and method for charging and metering toner particlesXEROX CORP·Filed 1988·Granted Oct 24, 1989·26 cites·29 claims
- 3084US7466942B2Direct charging device using nano-structures within a metal coated pore matrixXEROX CORP·Filed 2006·Granted Dec 16, 2008·7 cites·22 claims
- 3183US4394429ADevelopment process and apparatusXEROX CORP·Filed 1981·Granted Jul 19, 1983·22 cites·13 claims
- 3283US4368970ADevelopment process and apparatusXEROX CORP·Filed 1981·Granted Jan 18, 1983·21 cites·25 claims
- 3382US6328409B1Ballistic aerosol making apparatus for marking with a liquid materialXEROX CORP·Filed 1998·Granted Dec 11, 2001·43 cites·46 claims
- 3481US6013404AToner composition and processes thereofXEROX CORP·Filed 1998·Granted Jan 11, 2000·30 cites·19 claims
- 3580US6511149B1Ballistic aerosol marking apparatus for marking a substrateXEROX CORP·Filed 1998·Granted Jan 28, 2003·32 cites·27 claims
- 3679US4913348AMethod and apparatus for creating contrasting images at substantially full contrast voltageXEROX CORP·Filed 1988·Granted Apr 3, 1990·22 cites·6 claims
- 3778US7995952B2High performance materials and processes for manufacture of nanostructures for use in electron emitter ion and direct charging devicesXEROX CORP·Filed 2008·Granted Aug 9, 2011·4 cites·27 claims
- 3878US5144371ADual AC/dual frequency scavengeless developmentXEROX CORP·Filed 1991·Granted Sep 1, 1992·23 cites·24 claims
- 3978US4764841AToner charging apparatus with coated toner transport membersXEROX CORP·Filed 1984·Granted Aug 16, 1988·19 cites·16 claims
- 4077US5360940AScavengeless two component development with an electroded development rollXEROX CORP·Filed 1993·Granted Nov 1, 1994·22 cites·10 claims
- 4176US5448342ADevelopment system coatingsXEROX CORP·Filed 1993·Granted Sep 5, 1995·29 cites·4 claims
- 4275US6353723B1Electrophotographic development system with induction charged tonerXEROX CORP·Filed 2000·Granted Mar 5, 2002·14 cites·4 claims
- 4375US4370056ADevelopment systemXEROX CORP·Filed 1981·Granted Jan 25, 1983·17 cites·12 claims
- 4474US5899608AIon charging development system to deliver toner with low adhesionXEROX CORP·Filed 1998·Granted May 4, 1999·24 cites·12 claims
- 4573US6523928B2Method of treating a substrate employing a ballistic aerosol marking apparatusXEROX CORP·Filed 1998·Granted Feb 25, 2003·30 cites·21 claims
- 4673US5339142AAC/DC spatially programmable donor roll for xerographic developmentXEROX CORP·Filed 1992·Granted Aug 16, 1994·19 cites·10 claims
- 4770US7754408B2Synthetic carriersXEROX CORP·Filed 2005·Granted Jul 13, 2010·3 cites·17 claims
- 4869US5809385AReproduction machine including and acoustic scavengeless assist development apparatusXEROX CORP·Filed 1997·Granted Sep 15, 1998·19 cites·18 claims
- 4968US5119147ASelective coloring of bi-level latent electostatic imagesXEROX CORP·Filed 1990·Granted Jun 2, 1992·16 cites·26 claims
- 5067US6503678B1Toner compositions comprising polythiophenesXEROX CORP·Filed 2000·Granted Jan 7, 2003·8 cites·21 claims
Showing the top 50 of 87 patent records by PatentIndex Score.
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