Inventor
GRUBER ROBERT J
US57 patents
Patents
50 patentsUS4517268AMay 14, 1985
Process for magnetic image character recognition
XEROX CORP56 citations96
US5846643ADec 8, 1998
Thermally stable fuser member
XEROX CORP29 citations93
US5108863AApr 28, 1992
Processes for the preparation of encapsulated toner compositions
XEROX CORP26 citations93
US5035970AJul 30, 1991
Encapsulated toner compositions and processes thereof
XEROX CORP45 citations93
US4563086AJan 7, 1986
Copy quality monitoring for magnetic images
XEROX CORP38 citations93
US5557393ASep 17, 1996
Process and apparatus for achieving customer selectable colors in an electrostatographic imaging system
XEROX CORP48 citations92
US5124217AJun 23, 1992
Magnetic image character recognition processes
XEROX CORP33 citations92
US5034298AJul 23, 1991
Toner compositions and processes thereof
XEROX CORP34 citations92
US4965158AOct 23, 1990
Toner compositions with modified charge enhancing additives
XEROX CORP34 citations92
US4948686AAug 14, 1990
Process for forming two-color images
XEROX CORP43 citations92
US4876169AOct 24, 1989
Toner compositions with release additives therein
XEROX CORP30 citations92
US4859550AAug 22, 1989
Smear resistant magnetic image character recognition processes
XEROX CORP55 citations92
US4837101AJun 6, 1989
Negatively charged colored toner compositions
XEROX CORP25 citations92
US4814253AMar 21, 1989
Toner compositions with release agents therein
XEROX CORP32 citations92
US4578338AMar 25, 1986
Development process with toner composition containing low molecular weight waxes
XEROX CORP35 citations92
US4556624ADec 3, 1985
Toner compositions with crosslinked resins and low molecular weight wax components
XEROX CORP39 citations92
US4464452AAug 7, 1984
Developer compositions containing diaryl sulfonimides
XEROX CORP32 citations92
US4457998AJul 3, 1984
Composition with uncrosslinked polymer contained in a crosslinked polymer network
XEROX CORP30 citations92
US4851318AJul 25, 1989
Process for encapsulated toner compositions with oligomeric surfactant emulsifiers
XEROX CORP32 citations90
US4539284ASep 3, 1985
Developer compositions with infrared absorbing additives
XEROX CORP27 citations89
US4537848AAug 27, 1985
Positively charged toner compositions containing phosphonium charge enhancing additives
XEROX CORP29 citations89
USRE33172EFeb 27, 1990
Process for magnetic image character recognition
XEROX CORP19 citations82
US5943542AAug 24, 1999
Dual levels of functional and non-reactive release agents for fusers
XEROX CORP10 citations74
US5835833ANov 10, 1998
Dual oil release agent management system
XEROX CORP15 citations74
US5734955AMar 31, 1998
Development system
XEROX CORP15 citations74
US5514467AMay 7, 1996
Materials and structure for tape with enhanced release
XEROX CORP11 citations74
US4920023AApr 24, 1990
Stable color developer compositions and process for the preparation thereof
XEROX CORP9 citations74
US4898802AFeb 6, 1990
Toner compositions with organo boron negative charge enhancing additives
XEROX CORP6 citations74
US4879199ANov 7, 1989
Process for preparing encapsulated color toner compositions
XEROX CORP14 citations74
US4792513ADec 20, 1988
Positively charged toner compositions
XEROX CORP8 citations74
US4695524ASep 22, 1987
Process for ultra high quality images with magnetic developer composition
XEROX CORP13 citations74
US4634649AJan 6, 1987
Developer compositions
XEROX CORP10 citations74
US4609603ASep 2, 1986
Process for achieving consistent high quality images with magnetic developer composition
XEROX CORP14 citations74
US4487825ADec 11, 1984
Conductive single component electrophotographic magnetic toner
XEROX CORP9 citations74
US4460672AJul 17, 1984
Positively charged electrostatic toner contains low molecular weight waxy material and pyridinium halide or organic sulfonate
XEROX CORP18 citations74
US4303749ADec 1, 1981
Single component magnetic toner with epoxy resin
XEROX CORP8 citations74
US4017311AApr 12, 1977
Photoelectrophoretic imaging suspension
XEROX CORP6 citations74
US4604338AAug 5, 1986
Positively charged colored toner compositions
XEROX CORP19 citations73
US4426436AJan 17, 1984
Process for positive charge sharing toner compositions
XEROX CORP10 citations73
US4493883AJan 15, 1985
Electrophotographic toner compositions containing novel imide charge control _additives
XEROX CORP15 citations72
US4415646ANov 15, 1983
Nitrogen containing polymers as charge enhancing additive for electrophotographic toner
XEROX CORP18 citations72
US4378420AMar 29, 1983
Process for charging toner compositions
XEROX CORP8 citations72
US4304830ADec 8, 1981
Toner additives
XEROX CORP9 citations72
US5686189ANov 11, 1997
Fusing components containing ceramer compositions
XEROX CORP3 citations63
US5288580AFeb 22, 1994
Toner and processes thereof
XEROX CORP5 citations63
US4737434AApr 12, 1988
Process for colored toners with selected triboelectric characteristics
XEROX CORP4 citations63
US4520092AMay 28, 1985
Process for preventing deposition of toner particles in an imaging apparatus
XEROX CORP2 citations63
US4454214AJun 12, 1984
Toner compositions containing pyridinium tetrafluoroborates
XEROX CORP5 citations63
US4451837AMay 29, 1984
Conductive single component magnetic toner for use in electronic printing devices
XEROX CORP4 citations63
US4296192AOct 20, 1981
Electrostatographic toner composition
XEROX CORP4 citations63
Showing the top 50 of 57 patents by PatentIndex Score.