Inventor · disambiguated record
Alan Stirling Campbell
Also filed as: CAMPBELL ALAN · CAMPBELL ALAN S · CAMPBELL ALAN STIRLING
25 granted patents·4 pending applications·485 citations·filing 1979–2016
96Inventor score
Top patents by PatentIndex Score
29 records- 0197US4870433AThermal drop-on-demand ink jet print headIBM·Filed 1988·Granted Sep 26, 1989·155 cites·8 claims
- 0295US6510291B2Toner supply with level sensor and meter and method of using the sameLEXMARK INT INC·Filed 2001·Granted Jan 21, 2003·59 cites·50 claims
- 0391US8886080B2Cleaner unit for removing waste toner within an image forming deviceALLEN EUGENE DAVID·Filed 2012·Granted Nov 11, 2014·8 cites·25 claims
- 0489US8849146B2Method and system for efficient duplex printingLEXMARK INT INC·Filed 2012·Granted Sep 30, 2014·6 cites·20 claims
- 0588US5875378AToner cartridge with hopper exit agitatorLEXMARK INT INC·Filed 1996·Granted Feb 23, 1999·48 cites·24 claims
- 0688US4199767ANozzle valve for ink jet printersIBM·Filed 1979·Granted Apr 22, 1980·38 cites·17 claims
- 0784US9927762B2Biased lubricant applicator brush in imaging deviceLEXMARK INT INC·Filed 2016·Granted Mar 27, 2018·2 cites·16 claims
- 0883US7398025B2White vector feedback adjustmentLEXMARK INT INC·Filed 2005·Granted Jul 8, 2008·8 cites·23 claims
- 0983US6560418B2Method of setting laser power and developer bias in a multi-color electrophotographic machinieLEXMARK INT INC·Filed 2001·Granted May 6, 2003·25 cites·31 claims
- 1079US6021297AFlexible doctor blade having a radiused contact surfaceLEXMARK INT INC·Filed 1998·Granted Feb 1, 2000·30 cites·18 claims
- 1177US6466763B1Conveyor and waste toner reservoir for an image-forming apparatusLEXMARK INT INC·Filed 2000·Granted Oct 15, 2002·16 cites·9 claims
- 1277US6356726B1Electrophotographic printer with compact pre-transfer erase assemblyLEXMARK INT INC·Filed 2000·Granted Mar 12, 2002·16 cites·26 claims
- 1376US8489002B2Method for delaying the start of a gage for tracking the life of a consumable item for an imaging deviceAMANN MARK WILLIAM·Filed 2010·Granted Jul 16, 2013·2 cites·9 claims
- 1472US7379682B2Optimization of operating parameters, including imaging power, in an electrophotographic deviceLEXMARK INT INC·Filed 2005·Granted May 27, 2008·4 cites·23 claims
- 1569US9256162B2Method and apparatus for magnetic brush retraction in electrophotographic systemLEXMARK INT INC·Filed 2013·Granted Feb 9, 2016·1 cites·16 claims
- 1669US7277111B2Multiple speed modes for an electrophotographic deviceLEXMARK INT INC·Filed 2005·Granted Oct 2, 2007·3 cites·26 claims
- 1766US6181904B1Toner cartridge with pre-doctoring comminuatorLEXMARK INT INC·Filed 2000·Granted Jan 30, 2001·11 cites·14 claims
- 1861US5500724APhotoconductor for abrasion in liquid systemsLEXMARK INT INC·Filed 1995·Granted Mar 19, 1996·17 cites·3 claims
- 1957US2013108286A1Method for Delaying the Start of a Gage for Tracking the Life of a Consumable Item for an Imaging DeviceLEXMARK INT INC·Filed 2012·Application pending·0 cites
- 2055US7702267B2Apparatus and method for transfer of image forming substancesLEXMARK INT INC·Filed 2006·Granted Apr 20, 2010·1 cites·7 claims
- 2154US6072970ACharge rollerLEXMARK INT INC·Filed 1996·Granted Jun 6, 2000·15 cites·21 claims
- 2247US5406356ALiquid toner imaging with contact chargingLEXMARK INT INC·Filed 1993·Granted Apr 11, 1995·9 cites·12 claims
- 2343US2010036692A1Vending machine tracking system with multiple-channel tracking deviceRONNEBERGER JENS·Filed 2008·Application pending·0 cites
- 2442US8824929B2Method for increasing useful life of an image forming apparatusCAMPBELL ALAN STIRLING·Filed 2010·Granted Sep 2, 2014·0 cites·33 claims
- 2539US7710441B2Systems and methods for using multiple scanner facets to write a scan line of image data in an electrophotographic deviceLEXMARK INT INC·Filed 2006·Granted May 4, 2010·0 cites·19 claims
- 2636US8837967B2Device for determining and adjusting transfer voltage in an imaging apparatus and a method thereofCAMPBELL ALAN STIRLING·Filed 2010·Granted Sep 16, 2014·0 cites·32 claims
- 2736US2012311476A1System and method for providing an adaptive touch screen keyboardCAMPBELL ALAN STIRLING·Filed 2011·Application pending·0 cites
- 2836US2012306767A1Method for editing an electronic image on a touch screen displayCAMPBELL ALAN STIRLING·Filed 2011·Application pending·0 cites
- 2929US5707110APosition marking arrangementFORD GLOBAL TECH INC·Filed 1996·Granted Jan 13, 1998·11 cites·4 claims
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