Inventor · disambiguated record
Thomas R. Hoffend
Also filed as: HOFFEND JR THOMAS R · HOFFEND THOMAS R · STRELLA STEPHEN
66 granted patents·7 pending applications·2,371 citations·filing 1974–2024
99Inventor score
Files withXEROX CORP463M INNOVATIVE PROPERTIES CO20AMAZON TECH INC2HOFFEND JR THOMAS R2FREIER DAVID G1
Top patents by PatentIndex Score
73 records- 0199US5376494AReactive melt mixing process for preparing cross-linked toner resinXEROX CORP·Filed 1991·Granted Dec 27, 1994·111 cites·33 claims
- 0299US4560635AToner compositions with ammonium sulfate charge enhancing additivesXEROX CORP·Filed 1984·Granted Dec 24, 1985·538 cites·30 claims
- 0398US10647032B2Multilayer optical adhesives and methods of making same3M INNOVATIVE PROPERTIES CO·Filed 2017·Granted May 12, 2020·22 cites·9 claims
- 0498US9862124B2Multilayer optical adhesives and methods of making same3M INNOVATIVE PROPERTIES CO·Filed 2014·Granted Jan 9, 2018·28 cites·13 claims
- 0598US6284425B1Thermal transfer donor element having a heat management underlayer3M INNOVATIVE PROPERTIES CO·Filed 1999·Granted Sep 4, 2001·115 cites·16 claims
- 0698US5227460ACross-linked toner resinsXEROX CORP·Filed 1991·Granted Jul 13, 1993·267 cites·31 claims
- 0797US4883736AElectrophotographic toner and developer compositions with polymeric alcohol waxesXEROX CORP·Filed 1987·Granted Nov 28, 1989·69 cites·111 claims
- 0897US4185140APolymeric release agents for electroscopic thermoplastic tonersXEROX CORP·Filed 1978·Granted Jan 22, 1980·139 cites·27 claims
- 0996US4101686AMethod of fusing toner images using functionalized polymeric release agentsXEROX CORP·Filed 1974·Granted Jul 18, 1978·118 cites·5 claims
- 1095US7223515B1Thermal mass transfer substrate films, donor elements, and methods of making and using same3M INNOVATIVE PROPERTIES CO·Filed 2006·Granted May 29, 2007·15 cites·20 claims
- 1194US6228555B1Thermal mass transfer donor element3M INNOVATIVE PROPERTIES CO·Filed 1999·Granted May 8, 2001·148 cites·51 claims
- 1293US4490455AAmine acid salt charge enhancing toner additivesXEROX CORP·Filed 1982·Granted Dec 25, 1984·44 cites·24 claims
- 1392US6042981ACoated carrierXEROX CORP·Filed 1998·Granted Mar 28, 2000·57 cites·20 claims
- 1491US6355391B1Micro-powder coating for xerographic carrierXEROX CORP·Filed 2000·Granted Mar 12, 2002·45 cites·27 claims
- 1590US4397935APositively charged developer compositions containing quaternized vinyl pyridine polymersXEROX CORP·Filed 1982·Granted Aug 9, 1983·32 cites·16 claims
- 1689US6004712ACoated carrierXEROX CORP·Filed 1998·Granted Dec 21, 1999·44 cites·29 claims
- 1789US5548059AUnsaturated polyestersXEROX CORP·Filed 1995·Granted Aug 20, 1996·39 cites·29 claims
- 1888US4876169AToner compositions with release additives thereinXEROX CORP·Filed 1988·Granted Oct 24, 1989·30 cites·31 claims
- 1987US6468715B2Thermal mass transfer donor element3M INNOVATIVE PROPERTIES CO·Filed 2001·Granted Oct 22, 2002·50 cites·8 claims
- 2085US10353214B2Optical stacks for sparkle reduction3M INNOVATIVE PROPERTIES CO·Filed 2015·Granted Jul 16, 2019·5 cites·24 claims
- 2183US7396632B2Thermal mass transfer substrate films, donor elements, and methods of making and using same3M INNOVATIVE PROPERTIES CO·Filed 2007·Granted Jul 8, 2008·5 cites·20 claims
- 2283US5486444APolyester processes for the preparation of tonerXEROX CORP·Filed 1994·Granted Jan 23, 1996·28 cites·32 claims
- 2382US8098434B1Optical decollimator for daylighting systemsHOFFEND JR THOMAS R·Filed 2010·Granted Jan 17, 2012·7 cites·15 claims
- 2480US9970614B2Insulated glazing units and microoptical layer comprising microstructured diffuser and methods3M INNOVATIVE PROPERTIES CO·Filed 2015·Granted May 15, 2018·3 cites·25 claims
- 2580US6251554B1Coated carrierXEROX CORP·Filed 2000·Granted Jun 26, 2001·18 cites·42 claims
- 2679US10656312B2Insulated glazing units and microoptical layer including microstructured anisotropic diffuser and methods3M INNOVATIVE PROPERTIES CO·Filed 2016·Granted May 19, 2020·1 cites·24 claims
- 2779US5393630AMelt mixing processesXEROX CORP·Filed 1993·Granted Feb 28, 1995·23 cites·42 claims
- 2877US6689538B2Thermal mass transfer donor element3M INNOVATIVE PROPERTIES CO·Filed 2002·Granted Feb 10, 2004·27 cites·60 claims
- 2977US5401602AReactive melt mixing process for preparing cross-linked toner resins and toners therefromXEROX CORP·Filed 1993·Granted Mar 28, 1995·18 cites·21 claims
- 3076US10422497B2Optical structures for redirecting daylight3M INNOVATIVE PROPERTIES CO·Filed 2015·Granted Sep 24, 2019·2 cites·12 claims
- 3175US6680153B2Toner compositionsXEROX CORP·Filed 2002·Granted Jan 20, 2004·8 cites·26 claims
- 3275US5352556AToners having cross-linked toner resinsXEROX CORP·Filed 1993·Granted Oct 4, 1994·30 cites·18 claims
- 3374US9995944B2Optical stacks for sparkle reduction3M INNOVATIVE PROPERTIES CO·Filed 2015·Granted Jun 12, 2018·2 cites·19 claims
- 3474US5407772AUnsaturated polyestersXEROX CORP·Filed 1993·Granted Apr 18, 1995·17 cites·19 claims
- 3573US9918370B2Electroluminescent devices and methods of making electroluminescent devices including an optical spacerSAMSUNG DISPLAY CO LTD·Filed 2013·Granted Mar 13, 2018·2 cites·20 claims
- 3673US5935750ACoated carrierXEROX CORP·Filed 1998·Granted Aug 10, 1999·21 cites·30 claims
- 3773US4752550AToner compositions with inner salt charge enhancing additivesXEROX CORP·Filed 1986·Granted Jun 21, 1988·18 cites·66 claims
- 3873US2020230848A1Multilayer optical adhesives and methods of making same3M INNOVATIVE PROPERTIES CO·Filed 2020·Application pending·0 cites
- 3972US6010812ACoated carrierXEROX CORP·Filed 1998·Granted Jan 4, 2000·20 cites·32 claims
- 4071US5945244ACoated carrierXEROX CORP·Filed 1998·Granted Aug 31, 1999·19 cites·29 claims
- 4169US4600677AOrganoalkoxysilane carrier coatingsXEROX CORP·Filed 1982·Granted Jul 15, 1986·14 cites·22 claims
- 4267US5397671AProcesses for preparing crosslinked resins and toner compositions therefromXEROX CORP·Filed 1994·Granted Mar 14, 1995·15 cites·35 claims
- 4366US12416757B2Front light for use with reflective displaysAMAZON TECH INC·Filed 2024·Granted Sep 16, 2025·0 cites·20 claims
- 4466US6132917ACoated carrierXEROX CORP·Filed 2000·Granted Oct 17, 2000·9 cites·44 claims
- 4563US4330460AProcess for preparing colored toner particles employing a halogen salt to inhibit the aqueous phase polymerizationXEROX CORP·Filed 1980·Granted May 18, 1982·12 cites·4 claims
- 4662US4065586AFixing method using polyarylsiloxanes as release agentsXEROX CORP·Filed 1976·Granted Dec 27, 1977·9 cites·20 claims
- 4760US5532327ARandom copolymers made by anionic polymerization, toners incorporating these copolymers and method for the manufacture thereofXEROX CORP·Filed 1995·Granted Jul 2, 1996·15 cites·8 claims
- 4860US5079122AToner compositions with charge enhancing additivesXEROX CORP·Filed 1990·Granted Jan 7, 1992·12 cites·36 claims
- 4960US4314931AToner pigment treatment process for reducing the residual styrene monomer concentration to less than 0.5 percent by weightXEROX CORP·Filed 1980·Granted Feb 9, 1982·11 cites·4 claims
- 5059US8569948B2Electroluminescent devices and methods of making electroluminescent devices including an optical spacerWOLK MARTIN B·Filed 2004·Granted Oct 29, 2013·5 cites·19 claims
Showing the top 50 of 73 patent records by PatentIndex Score.
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