Inventor · disambiguated record
Michael Craig Leemhuis
Also filed as: LEEMHUIS MICHAEL · LEEMHUIS MICHAEL C · LEEMHUIS MICHAEL CRAIG
70 granted patents·6 pending applications·632 citations·filing 1989–2020
99Inventor score
Files withLEXMARK INT INC66BAKER RONALD WILLARD2BUCHANAN JOHN ANDREW2AGNISSEY KEVIN1ASKREN BENJAMIN ALAN1
Top patents by PatentIndex Score
76 records- 0198US9519243B2Replaceable unit for an image forming device having magnets of varying angular offset for toner level sensingLEXMARK INT INC·Filed 2015·Granted Dec 13, 2016·20 cites·24 claims
- 0297US8989611B2Replaceable unit for an image forming device having a falling paddle for toner level sensingLEXMARK INT INC·Filed 2012·Granted Mar 24, 2015·26 cites·20 claims
- 0396US9261851B2Positional control features of a replaceable unit for an electrophotographic image forming deviceLEXMARK INT INC·Filed 2014·Granted Feb 16, 2016·15 cites·15 claims
- 0496US9152080B2Replaceable unit for an image forming device having a toner agitator that includes a magnet for rotational sensingLEXMARK INT INC·Filed 2013·Granted Oct 6, 2015·15 cites·10 claims
- 0595US9983506B2Replaceable unit for an image forming device having magnets of varying angular offset for toner level sensingLEXMARK INT INC·Filed 2016·Granted May 29, 2018·6 cites·18 claims
- 0694US10429765B1Toner container for an image forming device having magnets of varying angular offset for toner level sensingLEXMARK INT INC·Filed 2018·Granted Oct 1, 2019·6 cites·20 claims
- 0794US10345736B1Toner level detection measuring a radius of a rotatable magnetLEXMARK INT INC·Filed 2018·Granted Jul 9, 2019·6 cites·13 claims
- 0894US9454125B1Systems and methods for reincorporating waste toner with fresh toner within a toner cartridgeLEXMARK INT INC·Filed 2015·Granted Sep 27, 2016·19 cites·15 claims
- 0994US8774685B1Venting system for a toner cartridge for use with an image forming deviceLEXMARK INT INC·Filed 2013·Granted Jul 8, 2014·9 cites·10 claims
- 1094US8718496B2Capacitive toner level sensorBARRY RAYMOND JAY·Filed 2011·Granted May 6, 2014·25 cites·22 claims
- 1193US9869950B1Toner agitator assemblyLEXMARK INT INC·Filed 2017·Granted Jan 16, 2018·5 cites·20 claims
- 1293US9829855B2Drive couplerLEXMARK INT INC·Filed 2014·Granted Nov 28, 2017·6 cites·11 claims
- 1393US6183079B1Coating apparatus for use in an ink jet printerLEXMARK INT INC·Filed 1998·Granted Feb 6, 2001·105 cites·10 claims
- 1492US9632477B1Systems for detecting an axially moveable member within a toner cartridgeLEXMARK INT INC·Filed 2015·Granted Apr 25, 2017·7 cites·16 claims
- 1592US9069286B2Rotational sensing for a replaceable unit of an image forming deviceLEXMARK INT INC·Filed 2014·Granted Jun 30, 2015·7 cites·7 claims
- 1692US8761639B1Replaceable unit for an electrophotographic image forming device having a latching mechanismLEXMARK INT INC·Filed 2013·Granted Jun 24, 2014·30 cites·17 claims
- 1792US8649710B2Toner cartridge having a pivoting exit port coverBUCHANAN JOHN ANDREW·Filed 2011·Granted Feb 11, 2014·14 cites·19 claims
- 1891US9477177B2Toner cartridge having a shutter lock mechanismLEXMARK INT INC·Filed 2014·Granted Oct 25, 2016·5 cites·20 claims
- 1991US9360796B2Angled toner paddles for a replaceable unit of an image forming deviceLEXMARK INT INC·Filed 2014·Granted Jun 7, 2016·5 cites·16 claims
- 2091US8948659B2Shutter for a developer unit for use with an image forming deviceBAKER RONALD WILLARD·Filed 2012·Granted Feb 3, 2015·10 cites·17 claims
- 2190US9291940B1Toner feed profileLEXMARK INT INC·Filed 2015·Granted Mar 22, 2016·7 cites·8 claims
- 2290US8948660B2Toner cartridge having engagement features to actuate a developer unit shutterBAKER RONALD WILLARD·Filed 2012·Granted Feb 3, 2015·27 cites·20 claims
- 2387US9519261B2Positional control features of a replaceable unit for an electrophotographic image forming deviceLEXMARK INT INC·Filed 2016·Granted Dec 13, 2016·2 cites·8 claims
- 2487US6181908B1Apparatus for corrugating materialsLEXMARK INT INC·Filed 1999·Granted Jan 30, 2001·38 cites·16 claims
- 2586US5810353AModular output stackers for printersLEXMARK INT INC·Filed 1997·Granted Sep 22, 1998·43 cites·6 claims
- 2684US9104134B2Toner level sensing for replaceable unit of an image forming deviceLEXMARK INT INC·Filed 2014·Granted Aug 11, 2015·3 cites·15 claims
- 2784US8099012B2Developer roll lip sealASKREN BENJAMIN ALAN·Filed 2007·Granted Jan 17, 2012·9 cites·21 claims
- 2881US10108142B2Drive couplerLEXMARK INT INC·Filed 2017·Granted Oct 23, 2018·1 cites·4 claims
- 2981US9128412B2Venting system for a toner cartridge for use with an image forming deviceLEXMARK INT INC·Filed 2014·Granted Sep 8, 2015·2 cites·17 claims
- 3080US9395645B2Capacitive toner level sensorLEXMARK INT INC·Filed 2014·Granted Jul 19, 2016·2 cites·19 claims
- 3179US10474060B1Toner level sensing using rotatable magnets having varying angular offsetLEXMARK INT INC·Filed 2018·Granted Nov 12, 2019·1 cites·11 claims
- 3279US9128443B2Toner level sensing for replaceable unit of an image forming deviceLEXMARK INT INC·Filed 2014·Granted Sep 8, 2015·2 cites·20 claims
- 3379US6238114B1Print media handling system and method of using sameLEXMARK INT INC·Filed 2000·Granted May 29, 2001·22 cites·18 claims
- 3478US9128444B1Toner level sensing for a replaceable unit of an image forming device using pulse width patterns from a magnetic sensorLEXMARK INT INC·Filed 2014·Granted Sep 8, 2015·2 cites·13 claims
- 3578US5316539ASelf-adjusting paper recurlerLEXMARK INT INC·Filed 1992·Granted May 31, 1994·25 cites·8 claims
- 3677US10684577B1Imaging transfer to intermediate transfer memberLEXMARK INT INC·Filed 2018·Granted Jun 16, 2020·1 cites·20 claims
- 3777US8301057B2Roller separation cam with automatic engagementAGNISSEY KEVIN·Filed 2010·Granted Oct 30, 2012·3 cites·21 claims
- 3876US9280087B2Electrophotographic image forming device latching system for retaining a replaceable unitLEXMARK INT INC·Filed 2013·Granted Mar 8, 2016·2 cites·12 claims
- 3975US6733106B1Ink jet maintenance station with radial orientationLEXMARK INT INC·Filed 2002·Granted May 11, 2004·15 cites·36 claims
- 4071US7149467B2Waste toner system for an image forming deviceLENMARK INTERNATIONAL INC·Filed 2004·Granted Dec 12, 2006·14 cites·26 claims
- 4170US9031424B2Systems and methods for measuring a particulate materialLEXMARK INT INC·Filed 2012·Granted May 12, 2015·1 cites·18 claims
- 4270US5005820APaper tray with leaf springIBM·Filed 1989·Granted Apr 9, 1991·16 cites·4 claims
- 4369US10921730B2Replaceable unit for an image forming device having magnets of varying angular offset for toner level sensingLEXMARK INT INC·Filed 2020·Granted Feb 16, 2021·0 cites·9 claims
- 4469US7424253B2Toner metering deviceLEXMARK INT INC·Filed 2005·Granted Sep 9, 2008·3 cites·9 claims
- 4568US10591846B2Replaceable unit for an image forming device having magnets of varying angular offset for toner level sensingLEXMARK INT INC·Filed 2018·Granted Mar 17, 2020·0 cites·31 claims
- 4668US8867968B2Movable toner port cover member for a replaceable unit of an imaging deviceBUCHANAN JOHN ANDREW·Filed 2012·Granted Oct 21, 2014·1 cites·35 claims
- 4767US10042319B2Image forming device having a replaceable unit that includes a latching mechanismLEXMARK INT INC·Filed 2017·Granted Aug 7, 2018·0 cites·17 claims
- 4865US10289024B2Toner level sensing for a replaceable unit of an image forming deviceLEXMARK INT INC·Filed 2018·Granted May 14, 2019·0 cites·13 claims
- 4965US9798287B2Replaceable unit for an electrophotographic image forming device having a latching mechanismLEXMARK INT INC·Filed 2016·Granted Oct 24, 2017·0 cites·10 claims
- 5065US7657213B2Doctor blade with tangential working tipLEXMARK INT INC·Filed 2006·Granted Feb 2, 2010·2 cites·18 claims
Showing the top 50 of 76 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →