JR

John Parker Richey

LI Lexmark International: 19 patents #115 of 1,615Top 8%
📍 Lexington, KY: #112 of 2,526 inventorsTop 5%
🗺 Kentucky: #398 of 11,577 inventorsTop 4%
Overall (All Time): #208,878 of 4,157,543Top 6%
21
Patents All Time

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDate
10001732 Power management and control for a fuser of an electrophotographic imaging device Jichang Cao, Christopher E. Rhoads, David Anthony Schneider, Daniel Steinberg 2018-06-19
9639038 Power management and control for a fuser of an electrophotographic imaging device Jichang Cao, Christopher E. Rhoads, David Anthony Schneider, Daniel Steinberg 2017-05-02
8301049 Characterization of toner patch sensor in an image forming device Mark A. Omelchenko 2012-10-30
7890006 Characterization of toner patch sensor Mark A. Omelchenko 2011-02-15
7593653 Optical sensor system with a dynamic threshold for monitoring toner transfer in an image forming device David Feinauer, Mark Alan Stuart 2009-09-22
7515646 Method and apparatus for reducing EMI emissions for data signals traveling over a data pathway Keith Bryan Hardin, Robert Aaron Oglesbee 2009-04-07
7433630 Method and apparatus for characterizing and compensating drive train rotational velocity errors Stacy Marie Pargett, Mark A. Omelchenko, John Spicer, Adrian James Lee 2008-10-07
7277111 Multiple speed modes for an electrophotographic device Alan Stirling Campbell, Cary Patterson Ravitz 2007-10-02
7018121 Combined paper and transparency sensor for an image forming apparatus Raymond Jay Barry, Michael David Maul, Steven R. Rehmel 2006-03-28
6661981 Method and apparatus for controlling transfer belt velocity of a color printer Richard M. Boothe, Danny Keith Chapman, Mark A. Omelchenko, Gregory Lawrence Ream 2003-12-09
6580881 Method of detecting waste toner in a container of an image forming apparatus Matthew Christopher Coriale, Jonathan C. Frey, Harald Portig, Wen-hsiung Adam Tseng, Liqun Larry Wang 2003-06-17
6560434 Intermediate transfer member motion control via surface wheel feedback Danny Keith Chapman, Brian Anthony Reichert 2003-05-06
6459443 Method of minimizing print delay due to mirror motor warm-up in an electrophotographic machine Martin C. Klement 2002-10-01
6366174 Method and apparatus for providing a clock generation circuit for digitally controlled frequency or spread spectrum clocking John Bruce Berry, James Ronald Booth, Keith Bryan Hardin 2002-04-02
6285383 Method of controlling laser scanner phase in a multicolor electrophotographic machine Martin C. Klement, Gregory Lawrence Ream 2001-09-04
6252618 Method of controlling print registration in an electrophotographic machine Matthew Christopher Coriale, Gregory Lawrence Ream 2001-06-26
6147699 Low electromagnetic emissions and improved signal quality video drive architecture for laser printers John Bruce Berry, Keith Bryan Hardin 2000-11-14
5986681 Toner conservation by PEL modulation with operator control Phillip Byron Wright, Dale R. Danner, Martin Victor DiGirolamo, Gary Scott Overall 1999-11-16
5783963 ASIC with selectable output drivers Sean Foster Garnett, Terry Parker, Warren J. Spina, Larry Wayne True 1998-07-21
5729270 Toner conservation by pel modulation with operator control Phillip Byron Wright, Dale R. Danner, Martin Victor DiGirolamo, Gary Scott Overall 1998-03-17
5650857 Bit map adjustment preserving resolution Carl P. Cole, Cuong Manh Hoang, Michael Klein, Mark Lane Mayberry 1997-07-22