Inventor · disambiguated record
Roger G. Markham
Also filed as: MARKHAM ROGER · MARKHAM ROGER G · MARKHAM ROGER GUY
36 granted patents·3 pending applications·1,222 citations·filing 1979–2022
98Inventor score
Files withXEROX CORP26FUJI XEROX CO LTD4MARKHAM ROGER G4COK RONALD STEVEN2BURBERRY MITCHELL STEWART1
Top patents by PatentIndex Score
39 records- 0197US4638337AThermal ink jet printheadXEROX CORP·Filed 1985·Granted Jan 20, 1987·172 cites·3 claims
- 0296US5710582AHybrid ink jet printerXEROX CORP·Filed 1995·Granted Jan 20, 1998·141 cites·9 claims
- 0395US9141225B2Capacitive touch screen with force detectionCOK RONALD STEVEN·Filed 2013·Granted Sep 22, 2015·28 cites·25 claims
- 0495US6168333B1Paper driven rotary encoder that compensates for nip-to-nip handoff errorXEROX CORP·Filed 1999·Granted Jan 2, 2001·72 cites·20 claims
- 0595US4638328APrinthead for an ink jet printerXEROX CORP·Filed 1986·Granted Jan 20, 1987·87 cites·11 claims
- 0692US6139674AMethod of making an ink jet printhead filter by laser ablationXEROX CORP·Filed 1997·Granted Oct 31, 2000·79 cites·2 claims
- 0792US5428377AColor spatial filtering for thermal ink jet printersXEROX CORP·Filed 1992·Granted Jun 27, 1995·87 cites·28 claims
- 0891US5051758AClean printhead cleanerXEROX CORP·Filed 1990·Granted Sep 24, 1991·77 cites·41 claims
- 0990US8439477B2Method of characterizing array of resistive heatersMARKHAM ROGER G·Filed 2011·Granted May 14, 2013·7 cites·19 claims
- 1090US6215119B1Dual sensor encoder to counter eccentricity errorsXEROX CORP·Filed 1999·Granted Apr 10, 2001·107 cites·21 claims
- 1189US9128558B2Force detecting method for capacitive touch screenCOK RONALD STEVEN·Filed 2013·Granted Sep 8, 2015·12 cites·25 claims
- 1288US6293644B1Method and apparatus for preventing satellite induced banding in an ink jet printer using pre-pulse compensationXEROX CORP·Filed 2000·Granted Sep 25, 2001·31 cites·15 claims
- 1384US4831390ABubble jet printing device with improved printhead heat controlXEROX CORP·Filed 1988·Granted May 16, 1989·35 cites·2 claims
- 1484US4282532AInk jet method and apparatus using a thin film piezoelectric excitor for drop generationXEROX CORP·Filed 1979·Granted Aug 4, 1981·22 cites·39 claims
- 1581US6808243B1Thermal inkjet print head with blended enable trainsXEROX CORP·Filed 2003·Granted Oct 26, 2004·31 cites·12 claims
- 1679US9754704B2Making thin-film multi-layer micro-wire structureMARKHAM ROGER G·Filed 2014·Granted Sep 5, 2017·3 cites·23 claims
- 1777US6412938B1System and method for reducing inter-color bleeding in liquid ink jet printingXEROX CORP·Filed 2000·Granted Jul 2, 2002·13 cites·22 claims
- 1875US9304636B2Micro-wire touch screen with unpatterned conductive layerBURBERRY MITCHELL STEWART·Filed 2013·Granted Apr 5, 2016·2 cites·18 claims
- 1974US5121130AThermal ink jet printing apparatusXEROX CORP·Filed 1990·Granted Jun 9, 1992·37 cites·13 claims
- 2073US6654508B1Correction and interpolation of position encodersXEROX CORP·Filed 2000·Granted Nov 25, 2003·15 cites·8 claims
- 2173US5304814ASensor circuit and method for detecting the presence of a substance such as ink ejected from a thermal ink ejecting print head, or the likeXEROX CORP·Filed 1993·Granted Apr 19, 1994·29 cites·25 claims
- 2272US4296417AInk jet method and apparatus using a thin film piezoelectric excitor for drop generation with spherical and cylindrical fluid chambersXEROX CORP·Filed 1979·Granted Oct 20, 1981·24 cites·20 claims
- 2369US6666535B2Method and apparatus for preventing satellite induced banding by selective pixel compensationXEROX CORP·Filed 2002·Granted Dec 23, 2003·8 cites·21 claims
- 2469US4370663AThin body ink drop generatorXEROX CORP·Filed 1980·Granted Jan 25, 1983·16 cites·12 claims
- 2568US5907331AInk-jet printhead with on-chip selection of print modesXEROX CORP·Filed 1997·Granted May 25, 1999·35 cites·5 claims
- 2665US7370944B2Liquid ejector having internal filtersEASTMAN KODAK CO·Filed 2004·Granted May 13, 2008·10 cites·35 claims
- 2764US6596644B1Methods for forming features in polymer layersXEROX CORP·Filed 2002·Granted Jul 22, 2003·9 cites·31 claims
- 2862US6607321B2Method and apparatus for moving a medium through a medium indexing deviceXEROX CORP·Filed 2000·Granted Aug 19, 2003·8 cites·25 claims
- 2955US9288901B2Thin-film multi-layer micro-wire structureMARKHAM ROGER G·Filed 2014·Granted Mar 15, 2016·0 cites·24 claims
- 3053US7163275B2Methods and apparatus for an automatic fluid ejector alignment and performance systemFUJI XEROX CO LTD·Filed 2004·Granted Jan 16, 2007·5 cites·27 claims
- 3151US2023078644A1Device and method for detecting nucleic acids in biological samplesDEFINITIVE BIOTECHNOLOGIES LLC·Filed 2022·Application pending·0 cites
- 3243US5150108AMethod for slanting a generic font format while inserting corrective pixels to improve print qualityXEROX CORP·Filed 1991·Granted Sep 22, 1992·10 cites·5 claims
- 3338US6897968B1Apparatus and method for counting pixels in print dataXEROX CORP·Filed 1999·Granted May 24, 2005·6 cites·24 claims
- 3436US7261389B2Systems and methods for dissipating heat into a fluid ejector carriage deviceFUJI XEROX CO LTD·Filed 2003·Granted Aug 28, 2007·0 cites·41 claims
- 3536US7192116B2Systems and methods for dissipating heat from a fluid ejector carriageFUJI XEROX CO LTD·Filed 2003·Granted Mar 20, 2007·0 cites·42 claims
- 3636US4348682ALinear ink jet deflection method and apparatusXEROX CORP·Filed 1981·Granted Sep 7, 1982·2 cites·11 claims
- 3736US2013027449A1Inkjet printhead with test resistorsMARKHAM ROGER G·Filed 2011·Application pending·0 cites
- 3833US2005179739A1Methods and apparatus for thermal fluid jet drop volume control using variable length pre-pulsesFUJI XEROX CO LTD·Filed 2004·Application pending·0 cites
- 3928US6721070B1Apparatus and method for counting pixels in print dataXEROX CORP·Filed 1999·Granted Apr 13, 2004·2 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →