Inventor · disambiguated record
Mark Duane Foster
Also filed as: FOSTER MARK · FOSTER MARK D · FOSTER MARK DUANE
22 granted patents·5 pending applications·336 citations·filing 1993–2014
95Inventor score
Top patents by PatentIndex Score
27 records- 0195US9031451B2Toner cartridge having a shutter lock mechanismLEXMARK INT INC·Filed 2013·Granted May 12, 2015·22 cites·15 claims
- 0295US7305204B2Two part cartridges with force biasing by printerLEXMARK INT INC·Filed 2006·Granted Dec 4, 2007·24 cites·20 claims
- 0393US7139510B2Two part cartridges with force biasing by printerLEXMARK INT INC·Filed 2005·Granted Nov 21, 2006·15 cites·10 claims
- 0492US8649710B2Toner cartridge having a pivoting exit port coverBUCHANAN JOHN ANDREW·Filed 2011·Granted Feb 11, 2014·14 cites·19 claims
- 0592US5926673ADriving mechanism for photosensitive image bearing drum in electrophotographic machinesLEXMARK INT INC·Filed 1998·Granted Jul 20, 1999·102 cites·13 claims
- 0691US6678489B1Two part cartridges with force biasing by printerLEXMARK INT INC·Filed 2002·Granted Jan 13, 2004·32 cites·6 claims
- 0789US6771922B2Toner cartridgeLEXMARK INT INC·Filed 2002·Granted Aug 3, 2004·37 cites·9 claims
- 0883US8510996B2Intumescent weathersealFOSTER MARK D·Filed 2010·Granted Aug 20, 2013·15 cites·13 claims
- 0975US6397026B1Apparatus and methods for increasing bias force on opposing photosensitive member and developing meansLEXMARK INT INC·Filed 2000·Granted May 28, 2002·18 cites·21 claims
- 1074US6879792B2Two part cartridges with force biasing by printerLEXMARK INT INC·Filed 2003·Granted Apr 12, 2005·10 cites·11 claims
- 1173US5335831AInsertable toner hopper sealing stripLEXMARK INT INC·Filed 1993·Granted Aug 9, 1994·20 cites·15 claims
- 1268US8867968B2Movable toner port cover member for a replaceable unit of an imaging deviceBUCHANAN JOHN ANDREW·Filed 2012·Granted Oct 21, 2014·1 cites·35 claims
- 1366US6985683B2Method of mitigating toner damage in high speed contact developing with end sealLEXMARK INT INC·Filed 2003·Granted Jan 10, 2006·10 cites·2 claims
- 1465US8327585B2Weatherseal with removable protective coatingFOSTER MARK D·Filed 2008·Granted Dec 11, 2012·1 cites·15 claims
- 1560US8774684B2Toner cartridge having a pivoting exit port coverLEXMARK INT INC·Filed 2012·Granted Jul 8, 2014·0 cites·20 claims
- 1659US8238803B2Doctor blade surface energy modificationANDERSON RICHARD KENT·Filed 2008·Granted Aug 7, 2012·2 cites·18 claims
- 1759US6931224B2Toner cartridge hopper with labyrinth channels for releasing air while trapping toner in cartridgeLEXMARK INT INC·Filed 2003·Granted Aug 16, 2005·7 cites·7 claims
- 1857US8679384B2Intumescent weathersealSCHLEGEL SYSTEMS INC·Filed 2013·Granted Mar 25, 2014·1 cites·6 claims
- 1951US8137783B2Backed pile stripPAWSON IAN·Filed 2005·Granted Mar 20, 2012·1 cites·23 claims
- 2050US2009084041A1Coextruded corner seal having materials of varied hardnessSCHLEGEL SYSTEMS INC·Filed 2007·Application pending·0 cites
- 2150US2007054072A1Packaging material for a developing agent cartridgeLEXMARK INT INC·Filed 2005·Application pending·0 cites
- 2247US8448336B2Electrophotographic roller with resistance to nip bandingBARCELO JANE ELECE·Filed 2008·Granted May 28, 2013·1 cites·34 claims
- 2346US9389576B1Roll deskewing device for an electrophotographic image forming deviceLEXMARK INT INC·Filed 2014·Granted Jul 12, 2016·0 cites·16 claims
- 2446US2013243500A1Electrophotographic Roller with Resistance to Nip BandingLEXMARK INT INC·Filed 2013·Application pending·0 cites
- 2539US6452380B1Rod and apparatus for calibrating magnetic roll testing apparatusLEXMARK INT INC·Filed 2000·Granted Sep 17, 2002·3 cites·22 claims
- 2638US2011010808A1Protected metallic tip or metallized scanning probe microscopy tip for optical applicationsUNIV AKRON·Filed 2008·Application pending·0 cites
- 2733US2010252168A1Backed pile weatherstripPAWSON IAN·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →