DP

David B. Playfair

Xerox: 14 patents #992 of 8,622Top 15%
Overall (All Time): #347,574 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10175631 Earth plate with breakaway rotated tabs Jonathan D. Sadik, Karl E. Kurz, Nancy L. Belknap 2019-01-08
D832220 Earth plate Jonathan D. Sadik, Karl E. Kurz 2018-10-30
8622532 Method and system for clog detection and mitigation in delivering solid-ink pellets to an imaging apparatus William H. Wayman, Michael Brundige 2014-01-07
8050595 Replenishment carrier injection system William H. Wayman 2011-11-01
D629447 Replenisher toner container for a xerographic machine Paul M. Wegman, Kevin L. Maltzahn, Wayne D. Drinkwater, Ricardo H. Mendoza, Mark R. Vannicola 2010-12-21
7805099 Teeter-totter valve for carrier replenishment system William H. Wayman 2010-09-28
7796900 Developer cartridge replacement scheme for electrostatographic printing 2010-09-14
6631250 Developer filtration module James J. Franzen, Wayne D. Drinkwater, Jan M. Enderle 2003-10-07
D432916 Container end cap Wayne D. Drinkwater, Jan M. Enderle, Frederick A. Philbrick 2000-10-31
6137972 Imaging material dispensing system Frederick A. Philbrick, Wayne D. Drinkwater, Jan M. Enderle, Michael Harris 2000-10-24
D422627 Plug for a toner container Wayne D. Drinkwater, Jan M. Enderle, Frederick A. Philbrick 2000-04-11
5575408 Image developer material agitation system with non-binding mixing coil agitator Virginia A. Marqueling, A. Lance Marchese, Bruce J. Parks, Darryl L. Pozzanghera 1996-11-19
5552864 Magnetic seal with tapered shunts Jan M. Malicki, Steven C. Hart 1996-09-03
5383502 Automatic toner dispenser lid latching and unlatching system Duane H. Fisk 1995-01-24