Inventor
YERGENSON ROBIN P
US25 patents
⚠️ This page may combine multiple inventors who share the name “YERGENSON ROBIN P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEWLETT PACKARD CO
12 patentsUS5655762AAug 12, 1997
Mechanism for avoiding multiple sheet misfeeds in sheet media feed systems
HEWLETT PACKARD CO78 citations96
US5594535AJan 14, 1997
Refillable toner cartridge
HEWLETT PACKARD CO63 citations95
US6266073B1Jul 24, 2001
Four beam electrophotographic printing apparatus
HEWLETT PACKARD CO28 citations92
US5615876AApr 1, 1997
Apparatus and method for sensing accordion jams in a laser printer
HEWLETT PACKARD CO33 citations92
US5268823ADec 7, 1993
Light transmission apparatus for electro-optically coupling to a display panel for an electronic instrument
HEWLETT PACKARD CO51 citations92
US5236348AAug 17, 1993
Printer paper status indicator
HEWLETT PACKARD CO35 citations86
US6182963B1Feb 6, 2001
Automatic force balance adjustment for sheet material cassette trays
HEWLETT PACKARD CO14 citations74
US5716744AFeb 10, 1998
Dual beam color electrophotographic apparatus
HEWLETT PACKARD CO9 citations74
US5630583AMay 20, 1997
Sheet media feeding mechanism having a variable radius feed roller
HEWLETT PACKARD CO15 citations74
US5887232AMar 23, 1999
Apparatus for dispensing toner in an electrophotographic printing system
HEWLETT PACKARD CO13 citations73
US6507721B1Jan 14, 2003
Toner resupply roller with skewed ribs
HEWLETT PACKARD CO4 citations63
US4949032AAug 14, 1990
Probe for dual in-line packages
HEWLETT PACKARD CO2 citations53
HEWLETT PACKARD DEVELOPMENT CO
7 patentsUS6641318B2Nov 4, 2003
Methods and systems for a multi-position print media feed-tray
HEWLETT PACKARD DEVELOPMENT CO10 citations74
US6567110B2May 20, 2003
System and method for reducing horizontal banding and misregistration between color planes in a color image
HEWLETT PACKARD DEVELOPMENT CO7 citations74
US6580890B2Jun 17, 2003
Clear toner for conditioning of development systems
HEWLETT PACKARD DEVELOPMENT CO7 citations73
US6879790B2Apr 12, 2005
Cassette loading of printing consumables
HEWLETT PACKARD DEVELOPMENT CO4 citations63
US10416591B2Sep 17, 2019
Toner cartridge
HEWLETT PACKARD DEVELOPMENT CO0 citations51
US12515467B2Jan 6, 2026
Circular structures for rotation of backing relative to base
HEWLETT PACKARD DEVELOPMENT CO0 citations47
US10804649B2Oct 13, 2020
Non-conductive member between incompatible power terminals
HEWLETT PACKARD DEVELOPMENT CO0 citations45