DS

Donald Wayne Stafford

LI Lexmark International: 31 patents #49 of 1,615Top 4%
IBM: 2 patents #32,839 of 70,183Top 50%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
TK Toshiba Tec Kabushiki Kaisha: 1 patents #1,144 of 1,664Top 70%
📍 Lexington, KY: #29 of 2,526 inventorsTop 2%
🗺 Kentucky: #140 of 11,577 inventorsTop 2%
Overall (All Time): #94,260 of 4,157,543Top 3%
36
Patents All Time

Issued Patents All Time

Showing 1–25 of 36 patents

Patent #TitleCo-InventorsDate
10365586 End seal assembly for an undercut developer roll Richard Louis Goin 2019-07-30
10175649 Negative pressure electrostatic process unit for printers and multifunction peripherals William M. Connors 2019-01-08
9261812 Toner adder roll having an abrasive agent additive Martin Victor DiGirolamo, Billie Jo Enciu, Kelly Ann Killeen, Kurt Daniel Lambert, Johnny Dale Massie, II +1 more 2016-02-16
8948649 Sealing member having internal lubricant additives Jody Evan McCoy, Gregory Keith Norris, St. Claire Devon Skepple, Robert Francis Soto 2015-02-03
8448336 Electrophotographic roller with resistance to nip banding Jane Elece Barcelo, Bradley Beach, Liam Ruan de Paor, Mark Duane Foster, Terence E. Franey +9 more 2013-05-28
8304066 Toner release coating Richard Kent Anderson, Martin Victor DiGirolamo, Mark W. Johnson, David Starling MacMillan, Robert Watson McAlpine +1 more 2012-11-06
8238803 Doctor blade surface energy modification Richard Kent Anderson, Martin Victor DiGirolamo, Mark Duane Foster, Whitney April Greer, Mark W. Johnson +4 more 2012-08-07
8017192 Radiation cured coatings for image forming device components Mark W. Johnson, Kelly Ann Killeen, David Starling MacMillan, Bart Mansdorf, Mark Stephen Weisman, Jr. 2011-09-13
7899384 Apparatus and method of reducing charge roller contamination Matthew David Heid, James Christopher Piotrowski, Joshua Carl Poterjoy 2011-03-01
7519308 Device and method for removing image forming substance deposits Peter Wallace Bracken, Donn Duane Bryant, Scott Richard Castle, Kevin Scott Kennedy, Abigail S. Marsh +1 more 2009-04-14
7356278 Cleaning member for charging device James Christopher Piotrowski, DeAndre Stevis Thompson 2008-04-08
7310494 Developing agent transport and storage Alfred Louis Fahmy, Robert Watson McAlpine, Franklin Joseph Palumbo, William D. Smith, Gregory Scott Tigges 2007-12-18
7236730 Dampening mechanism for an image forming apparatus James Eric Dickerson, Robert Edward Hackett, Donald Thomas Kral 2007-06-26
7231163 Apparatus and method of reducing charge roller contamination Bhaskar Gopalanarayanan, Robert Watson McAlpine, Jamie Piotrowski 2007-06-12
7167672 Method and device for conveying waste toner in an image forming device Robert Watson McAlpine, Franklin Joseph Palumbo, Alfred Louis Fahmy, Gregory Scott Tigges, William D. Smith 2007-01-23
7162191 Buffed toner metering blade for use with an imaging apparatus Martin Victor DiGirolamo, David Starling MacMillan, Jody Evan McCoy, Robert Francis Soto 2007-01-09
6990308 Image forming device, print cartridge and doctor blade assembly that reduce vibrations at doctoring media nip Robert Watson McAlpine, Gregory Scott Tigges 2006-01-24
6935734 Apparatus and method for printing using a coating solid Benjamin Alan Askren, Ronald Willard Baker, Ligia Aura Bejat, Charles Jerome Cheek, Gerald Lee Fish +8 more 2005-08-30
6481837 Ink delivery system Benjamin Alan Askren, Ronald Willard Baker, Philip Jerome Heink, Jeffrey Lynn Richie 2002-11-19
6243115 Pressurized ink supply and delivery system for an ink jet printer Ronald Willard Baker, Philip Jerome Heink, Jeffrey Lynn Richie 2001-06-05
6145971 Printer ink pump and method of supplying ink using motion of the carrier Ronald Willard Baker, William Paul Cook, Philip Jerome Heink, Jeffrey Lynn Richie 2000-11-14
6117557 Caprolactone ester polyurethane developer roller Johnny Dale Massie, II, Jean Marie Massie, Peter Wallin 2000-09-12
6087011 Polyurethane roller with oxide surface layer Bradley Beach, Todd Lucas Janes, Jean Marie Massie 2000-07-11
6072970 Charge roller William Barton, Alan Stirling Campbell, Martin Victor DiGirolamo 2000-06-06
5853868 Electrical contact material for flexible doctor blade Peter Wallace Bracken, Jeffery R. Brener, Martin Victor DiGirolamo, Sam E. Mullinix, Jr., Peter Wallin 1998-12-29