Inventor
DUFF DAVID G
US26 patents
⚠️ This page may combine multiple inventors who share the name “DUFF DAVID G”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PALO ALTO RES CT INC
12 patentsUS7185888B2Mar 6, 2007
Rotational jam clearance apparatus
PALO ALTO RES CT INC21 citations92
US7108260B2Sep 19, 2006
Flexible director paper path module
PALO ALTO RES CT INC30 citations92
US7954449B2Jun 7, 2011
Wiring-free, plumbing-free, cooled, vacuum chuck
PALO ALTO RES CT INC6 citations63
US7931269B2Apr 26, 2011
Rotational jam clearance apparatus
PALO ALTO RES CT INC1 citations63
US7918453B2Apr 5, 2011
Rotational jam clearance apparatus
PALO ALTO RES CT INC4 citations63
US7624981B2Dec 1, 2009
Universal variable pitch interface interconnecting fixed pitch sheet processing machines
PALO ALTO RES CT INC4 citations63
US7811692B2Oct 12, 2010
Micro-machined fuel cells
PALO ALTO RES CT INC2 citations62
US7459225B2Dec 2, 2008
Micro-machined fuel cells
PALO ALTO RES CT INC2 citations62
US8360423B2Jan 29, 2013
Transport for printing systems
PALO ALTO RES CT INC1 citations61
US8042807B2Oct 25, 2011
Transport for printing systems
PALO ALTO RES CT INC2 citations59
US7945346B2May 17, 2011
Module identification method and system for path connectivity in modular systems
PALO ALTO RES CT INC2 citations59
US7885592B2Feb 8, 2011
Rotary operated mechanism for retracting paper pathways of printers
PALO ALTO RES CT INC1 citations52
XEROX CORP
7 patentsUS6454624B1Sep 24, 2002
Robotic toy with posable joints
XEROX CORP145 citations97
US6605914B2Aug 12, 2003
Robotic toy modular system
XEROX CORP90 citations96
US6575802B2Jun 10, 2003
Robotic toy modular system with distributed program
XEROX CORP92 citations96
US6842246B2Jan 11, 2005
Six degree of freedom position ranging
XEROX CORP18 citations84
US6439081B1Aug 27, 2002
Harmonic friction drive
XEROX CORP14 citations84
US6603281B2Aug 5, 2003
High mechanical advantage ratcheting apparatus
XEROX CORP6 citations63
US8023866B2Sep 20, 2011
Powdered toner direct marking apparatus
XEROX CORP0 citations42