Inventor · disambiguated record
Patricia J. Donaldson
Also filed as: DONALDSON PATRICIA J · DONALDSON PATRICIA JOANNE
54 granted patents·3 pending applications·392 citations·filing 1991–2023
98Inventor score
Top patents by PatentIndex Score
57 records- 0199US9844961B1System and method for analysis of low-contrast ink test patterns in inkjet printersXEROX CORP·Filed 2016·Granted Dec 19, 2017·21 cites·17 claims
- 0296US9375962B1System and method for identification of marks in printed test patternsXEROX CORP·Filed 2015·Granted Jun 28, 2016·10 cites·10 claims
- 0395US9409389B1Coordination of printhead/substrate position with transfer of marking materialXEROX CORP·Filed 2015·Granted Aug 9, 2016·7 cites·20 claims
- 0495US8814300B2System and method for sub-pixel ink drop adjustment for process direction registrationSHIN HELEN HAEKYUNG·Filed 2012·Granted Aug 26, 2014·14 cites·20 claims
- 0595US7239820B2Tone reproduction curve systems and methodsXEROX CORP·Filed 2005·Granted Jul 3, 2007·19 cites·20 claims
- 0693US8562101B2Method and system for correcting media shift during identification of printhead rollCALAMITA JAMES P·Filed 2011·Granted Oct 22, 2013·9 cites·6 claims
- 0793US8414102B2In situ calibration of multiple printheads to reference ink targetsVITURRO R ENRIQUE·Filed 2011·Granted Apr 9, 2013·8 cites·5 claims
- 0891US9550328B2System and method for reducing or eliminating hue shift in three-dimensional printed objectsXEROX CORP·Filed 2014·Granted Jan 24, 2017·9 cites·7 claims
- 0991US6694109B1Real-time control of tone reproduction curve by redefinition of lookup tables from fit of in-line enhanced toner area coverage (ETAC) dataXEROX CORP·Filed 2003·Granted Feb 17, 2004·55 cites·18 claims
- 1090US8662625B2Method of printhead calibration between multiple printheadsDONALDSON PATRICIA J·Filed 2012·Granted Mar 4, 2014·11 cites·26 claims
- 1187US9604412B2Digital manufacturing system for printing three-dimensional objects on a rotating surfaceXEROX CORP·Filed 2013·Granted Mar 28, 2017·4 cites·15 claims
- 1286US5512988AApparatus and method for controlling development of developer material on a photoreceptive memberXEROX CORP·Filed 1994·Granted Apr 30, 1996·32 cites·23 claims
- 1385US9701064B2Digital manufacturing system for printing three-dimensional objects on a rotating coreXEROX CORP·Filed 2013·Granted Jul 11, 2017·5 cites·18 claims
- 1485US6047142AToner age calculation in print engine diagnosticXEROX CORP·Filed 1999·Granted Apr 4, 2000·36 cites·16 claims
- 1583US8888225B2Method for calibrating optical detector operation with marks formed on a moving image receiving surface in a printerXEROX CORP·Filed 2013·Granted Nov 18, 2014·4 cites·19 claims
- 1682US10717305B2Method, apparatus, device and system for correction of encoder runoutXEROX CORP·Filed 2018·Granted Jul 21, 2020·1 cites·8 claims
- 1782US10639841B2System and method for operating a three-dimensional printer to compensate for radial velocity variationsXEROX CORP·Filed 2017·Granted May 5, 2020·1 cites·15 claims
- 1882US9067445B2System and method of printhead calibration with reduced number of active inkjetsXEROX CORP·Filed 2013·Granted Jun 30, 2015·3 cites·7 claims
- 1979US10052823B2System and method for test pattern formation during three-dimensional object printingXEROX CORP·Filed 2014·Granted Aug 21, 2018·3 cites·11 claims
- 2079US7864373B2Method and system for toner reproduction curve linearization using least squares solution of monotone spline functionsXEROX CORP·Filed 2008·Granted Jan 4, 2011·5 cites·17 claims
- 2178US10635954B2Dot clock signal generation for operating ejectors in multiple color stations in a substrate printerXEROX CORP·Filed 2018·Granted Apr 28, 2020·1 cites·24 claims
- 2277US2023173760A1Chemical delivery devices produced using halftone screening in an additive manufacturing processXEROX CORP·Filed 2023·Application pending·0 cites
- 2376US9751259B2System and method for operating a three-dimensional printer to compensate for radial velocity variationsXEROX CORP·Filed 2014·Granted Sep 5, 2017·9 cites·12 claims
- 2474US9707785B2System and method for analysis of compact printed test patternsXEROX CORP·Filed 2015·Granted Jul 18, 2017·1 cites·20 claims
- 2573US11571859B2Chemical delivery devices produced using halftone screening in an additive manufacturing processXEROX CORP·Filed 2018·Granted Feb 7, 2023·0 cites·11 claims
- 2671US8801140B2In situ calibration of multiple printheads to reference ink targetsXEROX CORP·Filed 2013·Granted Aug 12, 2014·1 cites·9 claims
- 2770US8134741B2System and method for controlling consistent color qualityMO SONG-FENG·Filed 2007·Granted Mar 13, 2012·3 cites·18 claims
- 2870US6175698B1Toner concentration control for an imaging systemXEROX CORP·Filed 1999·Granted Jan 16, 2001·20 cites·20 claims
- 2969US11104162B2Method, apparatus, device and system for correction of encoder runoutXEROX CORP·Filed 2020·Granted Aug 31, 2021·0 cites·18 claims
- 3068US9738032B2System for controlling operation of a printer during three-dimensional object printing with reference to a distance from the surface of objectXEROX CORP·Filed 2014·Granted Aug 22, 2017·5 cites·13 claims
- 3168US6169861B1Feedback toner concentration control for an imaging systemXEROX CORP·Filed 1999·Granted Jan 2, 2001·18 cites·20 claims
- 3266US10150282B2System and method for additive manufacture of chemical delivery devices using halftone screeningXEROX CORP·Filed 2016·Granted Dec 11, 2018·0 cites·10 claims
- 3366US6160970AFeed forward and feedback toner concentration control for an imaging systemXEROX CORP·Filed 1999·Granted Dec 12, 2000·17 cites·25 claims
- 3465US9694574B2System for detecting inoperative inkjets in printheads ejecting clear ink using thermal substratesXEROX CORP·Filed 2016·Granted Jul 4, 2017·0 cites·19 claims
- 3565US7948658B2Tone reproduction curve linearizationXEROX CORP·Filed 2008·Granted May 24, 2011·2 cites·24 claims
- 3663US10569524B2System and method for protection of printed images formed on surfaces of three-dimensional printed objectsXEROX CORP·Filed 2017·Granted Feb 25, 2020·0 cites·14 claims
- 3763US9561649B2System for detecting inoperative inkjets in printheads ejecting clear ink using thermal substratesXEROX CORP·Filed 2016·Granted Feb 7, 2017·0 cites·11 claims
- 3863US9162509B1System for detecting inoperative inkjets in printheads ejecting clear ink using thermal substratesXEROX CORP·Filed 2014·Granted Oct 20, 2015·0 cites·11 claims
- 3961US9358820B2System for detecting inoperative inkjets in printheads ejecting clear ink using thermal substratesXEROX CORP·Filed 2015·Granted Jun 7, 2016·0 cites·11 claims
- 4061US6160971AFeed forward and feedback toner concentration control for an imaging systemXEROX CORP·Filed 1999·Granted Dec 12, 2000·14 cites·25 claims
- 4160US7498578B2Method and system for calibrating a reflection infrared densitometer in a digital image reproduction machineXEROX CORP·Filed 2004·Granted Mar 3, 2009·7 cites·17 claims
- 4259US6173133B1Feedback toner concentration control for an imaging systemXEROX CORP·Filed 1999·Granted Jan 9, 2001·13 cites·20 claims
- 4356US8010001B2Specular diffuse balance correction methodXEROX CORP·Filed 2007·Granted Aug 30, 2011·1 cites·28 claims
- 4456US6970662B2Systems and methods for in situ setting charge voltages in a dual recharge systemXEROX CORP·Filed 2003·Granted Nov 29, 2005·6 cites·38 claims
- 4551US11809932B2Printed products having machine-readable code for creating secure linksXEROX CORP·Filed 2021·Granted Nov 7, 2023·0 cites·20 claims
- 4650US9849661B2System and method for protection of printed images formed on surfaces of three-dimensional printed objectsXEROX CORP·Filed 2014·Granted Dec 26, 2017·0 cites·5 claims
- 4750US2009296154A1Off-gray balance calibration for extended color gamutXEROX CORP·Filed 2009·Application pending·0 cites
- 4849US11868058B2Lead edge offset correction for intermediate transfer drum imagingXEROX CORP·Filed 2021·Granted Jan 9, 2024·0 cites·14 claims
- 4945US10752028B2Dual encoder system to minimize reflex printing variationXEROX CORP·Filed 2018·Granted Aug 25, 2020·0 cites·19 claims
- 5045US8711429B2Systems and methods for printing images outside a normal color gamut in image forming devicesMESTHA LALIT K·Filed 2005·Granted Apr 29, 2014·0 cites·21 claims
Showing the top 50 of 57 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →