Inventor · disambiguated record
Robert J. Gruber
Also filed as: GRUBER ROBERT J
57 granted patents·1,058 citations·filing 1974–1998
99Inventor score
Files withXEROX CORP57
Top patents by PatentIndex Score
57 records- 0196US4517268AProcess for magnetic image character recognitionXEROX CORP·Filed 1983·Granted May 14, 1985·56 cites·12 claims
- 0294US5035970AEncapsulated toner compositions and processes thereofXEROX CORP·Filed 1989·Granted Jul 30, 1991·45 cites·38 claims
- 0393US4859550ASmear resistant magnetic image character recognition processesXEROX CORP·Filed 1988·Granted Aug 22, 1989·55 cites·45 claims
- 0493US4563086ACopy quality monitoring for magnetic imagesXEROX CORP·Filed 1984·Granted Jan 7, 1986·38 cites·12 claims
- 0593US4556624AToner compositions with crosslinked resins and low molecular weight wax componentsXEROX CORP·Filed 1984·Granted Dec 3, 1985·39 cites·30 claims
- 0692US5557393AProcess and apparatus for achieving customer selectable colors in an electrostatographic imaging systemXEROX CORP·Filed 1994·Granted Sep 17, 1996·48 cites·32 claims
- 0792US4948686AProcess for forming two-color imagesXEROX CORP·Filed 1989·Granted Aug 14, 1990·43 cites·70 claims
- 0891US4578338ADevelopment process with toner composition containing low molecular weight waxesXEROX CORP·Filed 1984·Granted Mar 25, 1986·35 cites·26 claims
- 0990US4464452ADeveloper compositions containing diaryl sulfonimidesXEROX CORP·Filed 1983·Granted Aug 7, 1984·32 cites·31 claims
- 1089US5034298AToner compositions and processes thereofXEROX CORP·Filed 1989·Granted Jul 23, 1991·34 cites·55 claims
- 1189US4965158AToner compositions with modified charge enhancing additivesXEROX CORP·Filed 1989·Granted Oct 23, 1990·34 cites·41 claims
- 1288US4876169AToner compositions with release additives thereinXEROX CORP·Filed 1988·Granted Oct 24, 1989·30 cites·31 claims
- 1388US4814253AToner compositions with release agents thereinXEROX CORP·Filed 1987·Granted Mar 21, 1989·32 cites·30 claims
- 1488US4457998AComposition with uncrosslinked polymer contained in a crosslinked polymer networkXEROX CORP·Filed 1982·Granted Jul 3, 1984·30 cites·18 claims
- 1586US5124217AMagnetic image character recognition processesXEROX CORP·Filed 1990·Granted Jun 23, 1992·33 cites·37 claims
- 1685US5108863AProcesses for the preparation of encapsulated toner compositionsXEROX CORP·Filed 1989·Granted Apr 28, 1992·26 cites·4 claims
- 1784US4537848APositively charged toner compositions containing phosphonium charge enhancing additivesXEROX CORP·Filed 1984·Granted Aug 27, 1985·29 cites·35 claims
- 1883US4837101ANegatively charged colored toner compositionsXEROX CORP·Filed 1988·Granted Jun 6, 1989·25 cites·18 claims
- 1983US4493883AElectrophotographic toner compositions containing novel imide charge control _additivesXEROX CORP·Filed 1984·Granted Jan 15, 1985·15 cites·24 claims
- 2082US4539284ADeveloper compositions with infrared absorbing additivesXEROX CORP·Filed 1984·Granted Sep 3, 1985·27 cites·24 claims
- 2178US4851318AProcess for encapsulated toner compositions with oligomeric surfactant emulsifiersXEROX CORP·Filed 1988·Granted Jul 25, 1989·32 cites·25 claims
- 2276USRE33172EProcess for magnetic image character recognitionXEROX CORP·Filed 1987·Granted Feb 27, 1990·19 cites·14 claims
- 2375US4460672APositively charged electrostatic toner contains low molecular weight waxy material and pyridinium halide or organic sulfonateXEROX CORP·Filed 1982·Granted Jul 17, 1984·18 cites·23 claims
- 2474US4604338APositively charged colored toner compositionsXEROX CORP·Filed 1985·Granted Aug 5, 1986·19 cites·27 claims
- 2574US4415646ANitrogen containing polymers as charge enhancing additive for electrophotographic tonerXEROX CORP·Filed 1982·Granted Nov 15, 1983·18 cites·35 claims
- 2672US5846643AThermally stable fuser memberXEROX CORP·Filed 1995·Granted Dec 8, 1998·29 cites·12 claims
- 2769US4609603AProcess for achieving consistent high quality images with magnetic developer compositionXEROX CORP·Filed 1984·Granted Sep 2, 1986·14 cites·29 claims
- 2868US4879199AProcess for preparing encapsulated color toner compositionsXEROX CORP·Filed 1988·Granted Nov 7, 1989·14 cites·24 claims
- 2968US4017311APhotoelectrophoretic imaging suspensionXEROX CORP·Filed 1975·Granted Apr 12, 1977·6 cites·1 claims
- 3064US4695524AProcess for ultra high quality images with magnetic developer compositionXEROX CORP·Filed 1986·Granted Sep 22, 1987·13 cites·29 claims
- 3163US5734955ADevelopment systemXEROX CORP·Filed 1996·Granted Mar 31, 1998·15 cites·3 claims
- 3259US4426436AProcess for positive charge sharing toner compositionsXEROX CORP·Filed 1981·Granted Jan 17, 1984·10 cites·9 claims
- 3357US4634649ADeveloper compositionsXEROX CORP·Filed 1985·Granted Jan 6, 1987·10 cites·16 claims
- 3455US4920023AStable color developer compositions and process for the preparation thereofXEROX CORP·Filed 1988·Granted Apr 24, 1990·9 cites·22 claims
- 3555US4304830AToner additivesXEROX CORP·Filed 1980·Granted Dec 8, 1981·9 cites·5 claims
- 3655US4303749ASingle component magnetic toner with epoxy resinXEROX CORP·Filed 1980·Granted Dec 1, 1981·8 cites·6 claims
- 3754US5943542ADual levels of functional and non-reactive release agents for fusersXEROX CORP·Filed 1998·Granted Aug 24, 1999·10 cites·18 claims
- 3852US4378420AProcess for charging toner compositionsXEROX CORP·Filed 1981·Granted Mar 29, 1983·8 cites·5 claims
- 3951US5835833ADual oil release agent management systemXEROX CORP·Filed 1998·Granted Nov 10, 1998·15 cites·20 claims
- 4050US4792513APositively charged toner compositionsXEROX CORP·Filed 1987·Granted Dec 20, 1988·8 cites·31 claims
- 4149US3957829ACertain dinaphtho[1,2-b;2',3'-d]-furan-7,12-dionesXEROX CORP·Filed 1974·Granted May 18, 1976·2 cites·4 claims
- 4247US4898802AToner compositions with organo boron negative charge enhancing additivesXEROX CORP·Filed 1989·Granted Feb 6, 1990·6 cites·26 claims
- 4346US4487825AConductive single component electrophotographic magnetic tonerXEROX CORP·Filed 1981·Granted Dec 11, 1984·9 cites·3 claims
- 4445US5514467AMaterials and structure for tape with enhanced releaseXEROX CORP·Filed 1992·Granted May 7, 1996·11 cites·11 claims
- 4545US4565765AProcess of developing electrostatic latent images comprised of rotating magnets contained in stationary shell and synthetic carrierXEROX CORP·Filed 1983·Granted Jan 21, 1986·6 cites·22 claims
- 4644US4454214AToner compositions containing pyridinium tetrafluoroboratesXEROX CORP·Filed 1982·Granted Jun 12, 1984·5 cites·28 claims
- 4741US5686189AFusing components containing ceramer compositionsXEROX CORP·Filed 1993·Granted Nov 11, 1997·3 cites·14 claims
- 4841US5288580AToner and processes thereofXEROX CORP·Filed 1991·Granted Feb 22, 1994·5 cites·9 claims
- 4940US4451837AConductive single component magnetic toner for use in electronic printing devicesXEROX CORP·Filed 1982·Granted May 29, 1984·4 cites·3 claims
- 5039US4737434AProcess for colored toners with selected triboelectric characteristicsXEROX CORP·Filed 1986·Granted Apr 12, 1988·4 cites·20 claims
Showing the top 50 of 57 patent records by PatentIndex Score.
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