Donald Wayne Stafford

Person

Richmond, KY, US

People

Patents Grantslast 30 patents

Information Patent Grant
End seal assembly for an undercut developer roll
- Patent number 10,365,586
- Issue date Jul 30, 2019
- Lexmark International, Inc.
- Richard Louis Goin
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Negative pressure electrostatic process unit for printers and multi...
- Patent number 10,175,649
- Issue date Jan 8, 2019
- Kabushiki Kaisha Toshiba
- Donald W. Stafford
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner adder roll having an abrasive agent additive
- Patent number 9,261,812
- Issue date Feb 16, 2016
- Lexmark International, Inc.
- Martin Victor DiGirolamo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Sealing member having internal lubricant additives
- Patent number 8,948,649
- Issue date Feb 3, 2015
- Lexmark International, Inc.
- Jody Evan McCoy
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic roller with resistance to nip banding
- Patent number 8,448,336
- Issue date May 28, 2013
- Lexmark International, Inc.
- Jane Elece Barcelo
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Toner release coating
- Patent number 8,304,066
- Issue date Nov 6, 2012
- Lexmark International, Inc.
- Richard Kent Anderson
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Doctor blade surface energy modification
- Patent number 8,238,803
- Issue date Aug 7, 2012
- Lexmark International, Inc.
- Richard Kent Anderson
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Radiation cured coatings for image forming device components
- Patent number 8,017,192
- Issue date Sep 13, 2011
- Lexmark International, Inc.
- Mark William Johnson
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Grant
Apparatus and method of reducing charge roller contamination
- Patent number 7,899,384
- Issue date Mar 1, 2011
- Lexmark International, Inc.
- Matthew David Heid
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Device and method for removing image forming substance deposits
- Patent number 7,519,308
- Issue date Apr 14, 2009
- Peter Wallace Bracken
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning member for charging device
- Patent number 7,356,278
- Issue date Apr 8, 2008
- Lexmark International, Inc.
- James Christopher Piotrowski
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing agent transport and storage
- Patent number 7,310,494
- Issue date Dec 18, 2007
- Lexmark International, Inc.
- Alfred Louis Fahmy
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Dampening mechanism for an image forming apparatus
- Patent number 7,236,730
- Issue date Jun 26, 2007
- Lexmark International, Inc.
- James Eric Dickerson
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Apparatus and method of reducing charge roller contamination
- Patent number 7,231,163
- Issue date Jun 12, 2007
- Lexmark International, Inc.
- Bhaskar Gopalanarayanan
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method and device for conveying waste toner in an image forming device
- Patent number 7,167,672
- Issue date Jan 23, 2007
- Lexmark International, Inc.
- Donald Wayne Stafford
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Buffed toner metering blade for use with an imaging apparatus
- Patent number 7,162,191
- Issue date Jan 9, 2007
- Lexmark International, Inc.
- Martin Victor DiGirolamo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming device, print cartridge and doctor blade assembly tha...
- Patent number 6,990,308
- Issue date Jan 24, 2006
- Lexmark International, Inc.
- Robert Watson McAlpine
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Apparatus and method for printing using a coating solid
- Patent number 6,935,734
- Issue date Aug 30, 2005
- Lexmark International, Inc.
- Benjamin A. Askren
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink delivery system
- Patent number 6,481,837
- Issue date Nov 19, 2002
- Benjamin Alan Askren
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Pressurized ink supply and delivery system for an ink jet printer
- Patent number 6,243,115
- Issue date Jun 5, 2001
- Lexmark International, Inc.
- Ronald Willard Baker
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Printer ink pump and method of supplying ink using motion of the ca...
- Patent number 6,145,971
- Issue date Nov 14, 2000
- Lexmark International, Inc.
- Ronald Willard Baker
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Caprolactone ester polyurethane developer roller
- Patent number 6,117,557
- Issue date Sep 12, 2000
- Lexmark International, Inc.
- Johnny Dale Massie
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Polyurethane roller with oxide surface layer
- Patent number 6,087,011
- Issue date Jul 11, 2000
- Lexmark International, Inc.
- Bradley Leonard Beach
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charge roller
- Patent number 6,072,970
- Issue date Jun 6, 2000
- Lexmark International, Inc.
- William Hargis Barton
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Electrical contact material for flexible doctor blade
- Patent number 5,853,868
- Issue date Dec 29, 1998
- Lexmark International, Inc.
- Peter W. Bracken
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process of making a polyurethane roller with high surface resistance
- Patent number 5,804,114
- Issue date Sep 8, 1998
- Lexmark International, Inc.
- Todd Lucas Janes
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Abrasive shim compliant doctor blade
- Patent number 5,797,076
- Issue date Aug 18, 1998
- Lexmark International, Inc.
- Peter Wallace Bracken
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Compliant doctor blade surface having molybdenum disulfide
- Patent number 5,708,943
- Issue date Jan 13, 1998
- Lexmark International, Inc.
- Steven L. Applegate
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Polyurethane roller with high surface resistance
- Patent number 5,707,743
- Issue date Jan 13, 1998
- Lexmark International, Inc.
- Todd Lucas Janes
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Compliant doctor blade
- Patent number 5,702,812
- Issue date Dec 30, 1997
- Lexmark International, Inc.
- Peter W. Bracken
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
ELECTRIFIED CONDUCTIVE CLEANER BLADE FOR PRINTERS AND MULTIFUNCTION...
- Publication number 20190094785
- Publication date Mar 28, 2019
- KABUSHIKI KAISHA TOSHIBA
- Donald W. STAFFORD
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Roll Having Textured Axial Ends to Prevent Toner Leakage
- Publication number 20150293469
- Publication date Oct 15, 2015
- Lexmark International, Inc.
- Marc Frazier Baker
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
SEALING MEMBER HAVING INTERNAL LUBRICANT ADDITIVES
- Publication number 20130259514
- Publication date Oct 3, 2013
- Jody Evan McCoy
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Electrophotographic Roller with Resistance to Nip Banding
- Publication number 20130243500
- Publication date Sep 19, 2013
- Lexmark International, Inc.
- Mark Duane Foster
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Apparatus and Method of Reducing Charge Roller Contamination
- Publication number 20100111581
- Publication date May 6, 2010
- Matthew David Heid
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Electrophotographic Roller With Resistance to Nip Banding
- Publication number 20100003610
- Publication date Jan 7, 2010
- Jane Elece Barcelo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Toner Release Coating
- Publication number 20090181236
- Publication date Jul 16, 2009
- Richard Kent Anderson
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Doctor Blade Surface Energy Modification
- Publication number 20090169273
- Publication date Jul 2, 2009
- Richard Kent Anderson
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
RADIATION CURED COATINGS FOR IMAGE FORMING DEVICE COMPONENTS
- Publication number 20090022902
- Publication date Jan 22, 2009
- Mark William Johnson
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Device and Method for Removing Image Forming Substance Deposits
- Publication number 20080038009
- Publication date Feb 14, 2008
- Peter Wallace Bracken
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Doctor Blade and Developer Assembly with Precision Diameter Radius...
- Publication number 20070237552
- Publication date Oct 11, 2007
- Robert Watson McAlpine
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Packaging material for a developing agent cartridge
- Publication number 20070054072
- Publication date Mar 8, 2007
- Lexmark International, Inc.
- Peter Wallace Bracken
- B32 - LAYERED PRODUCTS
Information Patent Application
Developing agent transport and storage
- Publication number 20070048050
- Publication date Mar 1, 2007
- Lexmark International, Inc.
- Alfred Louis Fahmy
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Method and device for conveying waste toner in an image forming device
- Publication number 20060188302
- Publication date Aug 24, 2006
- Lexmark International, Inc.
- Donald Wayne Stafford
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Apparatus and method of reducing charge roller contamination
- Publication number 20060182475
- Publication date Aug 17, 2006
- Lexmark International, Inc.
- Bhaskar Gopalanarayanan
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Dampening mechanism for an image forming apparatus
- Publication number 20060104676
- Publication date May 18, 2006
- Lexmark International, Inc.
- James Eric Dickerson
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Doctor blade for use with an imaging apparatus
- Publication number 20050220500
- Publication date Oct 6, 2005
- Martin Victor DiGirolamo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Apparatus and method for printing using a coating solid
- Publication number 20040246318
- Publication date Dec 9, 2004
- Benjamin A. Askren
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Donald Wayne Stafford

Person

Patents Grantslast 30 patents

End seal assembly for an undercut developer roll

Negative pressure electrostatic process unit for printers and multi...

Toner adder roll having an abrasive agent additive

Sealing member having internal lubricant additives

Electrophotographic roller with resistance to nip banding

Toner release coating

Doctor blade surface energy modification

Radiation cured coatings for image forming device components

Apparatus and method of reducing charge roller contamination

Device and method for removing image forming substance deposits

Cleaning member for charging device

Developing agent transport and storage

Dampening mechanism for an image forming apparatus

Apparatus and method of reducing charge roller contamination

Method and device for conveying waste toner in an image forming device

Buffed toner metering blade for use with an imaging apparatus

Image forming device, print cartridge and doctor blade assembly tha...

Apparatus and method for printing using a coating solid

Ink delivery system

Pressurized ink supply and delivery system for an ink jet printer

Printer ink pump and method of supplying ink using motion of the ca...

Caprolactone ester polyurethane developer roller

Polyurethane roller with oxide surface layer

Charge roller

Electrical contact material for flexible doctor blade

Process of making a polyurethane roller with high surface resistance

Abrasive shim compliant doctor blade

Compliant doctor blade surface having molybdenum disulfide

Polyurethane roller with high surface resistance

Compliant doctor blade

Patents Applicationslast 30 patents

ELECTRIFIED CONDUCTIVE CLEANER BLADE FOR PRINTERS AND MULTIFUNCTION...

Roll Having Textured Axial Ends to Prevent Toner Leakage

SEALING MEMBER HAVING INTERNAL LUBRICANT ADDITIVES

Electrophotographic Roller with Resistance to Nip Banding

Apparatus and Method of Reducing Charge Roller Contamination

Electrophotographic Roller With Resistance to Nip Banding

Toner Release Coating

Doctor Blade Surface Energy Modification

RADIATION CURED COATINGS FOR IMAGE FORMING DEVICE COMPONENTS

Device and Method for Removing Image Forming Substance Deposits

Doctor Blade and Developer Assembly with Precision Diameter Radius...

Packaging material for a developing agent cartridge

Developing agent transport and storage

Method and device for conveying waste toner in an image forming device

Apparatus and method of reducing charge roller contamination

Dampening mechanism for an image forming apparatus

Doctor blade for use with an imaging apparatus

Apparatus and method for printing using a coating solid