David B. Playfair

Person

Penfield, NY, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method and system for clog detection and mitigation in delivering s...
- Patent number 8,622,532
- Issue date Jan 7, 2014
- Xerox Corporation
- William H. Wayman
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Replenishment carrier injection system
- Patent number 8,050,595
- Issue date Nov 1, 2011
- Xerox Corporation
- William H Wayman
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Replenisher toner container for a xerographic machine
- Patent number D629447
- Issue date Dec 21, 2010
- Xerox Corporation
- Paul M Wegman
- D18 - Printing and office machinery
Information Patent Grant
Teeter-totter valve for carrier replenishment system
- Patent number 7,805,099
- Issue date Sep 28, 2010
- Xerox Corporation
- William H Wayman
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Developer cartridge replacement scheme for electrostatographic prin...
- Patent number 7,796,900
- Issue date Sep 14, 2010
- Xerox Corporation
- David B. Playfair
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer filtration module
- Patent number 6,631,250
- Issue date Oct 7, 2003
- Xerox Corporation
- David B. Playfair
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Container end cap
- Patent number D432916
- Issue date Oct 31, 2000
- Xerox Corporation
- Wayne D. Drinkwater
- D09 - Packages and containers for goods
Information Patent Grant
Imaging material dispensing system
- Patent number 6,137,972
- Issue date Oct 24, 2000
- Xerox Corporation
- David B. Playfair
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Plug for a toner container
- Patent number D422627
- Issue date Apr 11, 2000
- Xerox Corporation
- Wayne D. Drinkwater
- D18 - Printing and office machinery
Information Patent Grant
Image developer material agitation system with non-binding mixing c...
- Patent number 5,575,408
- Issue date Nov 19, 1996
- Xerox Corporation
- Virginia A. Marqueling
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnetic seal with tapered shunts
- Patent number 5,552,864
- Issue date Sep 3, 1996
- Xerox Corporation
- Jan M. Malicki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Automatic toner dispenser lid latching and unlatching system
- Patent number 5,383,502
- Issue date Jan 24, 1995
- Xerox Corporation
- Duane H. Fisk
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND SYSTEM FOR CLOG DETECTION AND MITIGATION IN DELIVERING S...
- Publication number 20120287210
- Publication date Nov 15, 2012
- Xerox Corporation
- William H. Wayman
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
REPLENISHER TONER CONTAINER
- Publication number 20110142498
- Publication date Jun 16, 2011
- Xerox Corporation
- Paul M. Wegman
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TEETER-TOTTER VALVE FOR CARRIER REPLENISHMENT SYSTEM
- Publication number 20090162105
- Publication date Jun 25, 2009
- Xerox Corporation
- William H. Wayman
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
REPLENISHMENT CARRIER INJECTION SYSTEM
- Publication number 20090162104
- Publication date Jun 25, 2009
- Xerox Corporation
- William H. Wayman
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Developer cartridge replacement scheme for electrostatographic prin...
- Publication number 20080118256
- Publication date May 22, 2008
- Xerox Corporation.
- David B. Playfair
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Developer filtration module
- Publication number 20030108361
- Publication date Jun 12, 2003
- Xerox Corporation.
- David B. Playfair
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

David B. Playfair

Person

Patents Grantslast 30 patents

Method and system for clog detection and mitigation in delivering s...

Replenishment carrier injection system

Replenisher toner container for a xerographic machine

Teeter-totter valve for carrier replenishment system

Developer cartridge replacement scheme for electrostatographic prin...

Developer filtration module

Container end cap

Imaging material dispensing system

Plug for a toner container

Image developer material agitation system with non-binding mixing c...

Magnetic seal with tapered shunts

Automatic toner dispenser lid latching and unlatching system

Patents Applicationslast 30 patents

METHOD AND SYSTEM FOR CLOG DETECTION AND MITIGATION IN DELIVERING S...

REPLENISHER TONER CONTAINER

TEETER-TOTTER VALVE FOR CARRIER REPLENISHMENT SYSTEM

REPLENISHMENT CARRIER INJECTION SYSTEM

Developer cartridge replacement scheme for electrostatographic prin...

Developer filtration module