Inventor · disambiguated record
Kenneth A. Epstein
Also filed as: EPSTEIN KENNETH A
89 granted patents·24 pending applications·2,938 citations·filing 1994–2024
99Inventor score
Files with3M INNOVATIVE PROPERTIES CO743M INNOVATIVE PROPERTIES COMPANY14EPSTEIN KENNETH A7MINNESOTA MINING & MFG3AASTUEN DAVID J W1
Top patents by PatentIndex Score
113 records- 0198US7255469B2Phosphor based illumination system having a light guide and an interference reflector3M INNOVATIVE PROPERTIES CO·Filed 2004·Granted Aug 14, 2007·111 cites·34 claims
- 0298US6707611B2Optical film with variable angle prisms3M INNOVATIVE PROPERTIES CO·Filed 2003·Granted Mar 16, 2004·116 cites·5 claims
- 0398US6379016B1Light guide with extraction structures3M INNOVATIVE PROPERTIES CO·Filed 2000·Granted Apr 30, 2002·203 cites·36 claims
- 0498US5608550AFront-lit liquid crystal display having brightness enhancing film with microridges which directs light through the display to a reflectorMINNESOTA MINING & MFG·Filed 1996·Granted Mar 4, 1997·323 cites·20 claims
- 0597US7322731B2Color mixing illumination light unit and system using same3M INNOVATIVE PROPERTIES CO·Filed 2005·Granted Jan 29, 2008·44 cites·31 claims
- 0697US7052168B2Illumination device3M INNOVATIVE PROPERTIES CO·Filed 2003·Granted May 30, 2006·126 cites·25 claims
- 0797US6560026B2Optical film with variable angle prismsFiled 2002·Granted May 6, 2003·78 cites·27 claims
- 0897US6356391B1Optical film with variable angle prisms3M INNOVATIVE PROPERTIES CO·Filed 1999·Granted Mar 12, 2002·185 cites·28 claims
- 0996US8246220B2LED array systemsEPSTEIN KENNETH A·Filed 2011·Granted Aug 21, 2012·20 cites·18 claims
- 1096US7695180B2Illumination assembly and system3M INNOVATIVE PROPERTIES CO·Filed 2006·Granted Apr 13, 2010·64 cites·26 claims
- 1195US9804311B2Higher transmission light control film comprising a transmissive region and an absorptive region each having a different index of refraction3M INNOVATIVE PROPERTIES CO·Filed 2016·Granted Oct 31, 2017·13 cites·12 claims
- 1295US9335449B2Higher transmission light control filmGAIDES GARY E·Filed 2008·Granted May 10, 2016·47 cites·13 claims
- 1395US8848132B2Hollow backlight with structured filmsO'NEILL MARK B·Filed 2009·Granted Sep 30, 2014·76 cites·14 claims
- 1495US7478913B2Back-lit displays with high illumination uniformity3M INNOVATIVE PROPERTIES CO·Filed 2006·Granted Jan 20, 2009·29 cites·24 claims
- 1595US6592234B2Frontlit display3M INNOVATIVE PROPERTIES CO·Filed 2001·Granted Jul 15, 2003·92 cites·25 claims
- 1695US6576887B2Light guide for use with backlit display3M INNOVATIVE PROPERTIES CO·Filed 2001·Granted Jun 10, 2003·158 cites·38 claims
- 1794US6845212B2Optical element having programmed optical structures3M INNOVATIVE PROPERTIES CO·Filed 1999·Granted Jan 18, 2005·155 cites·19 claims
- 1893US9773847B2Antireflective OLED construction3M INNOVATIVE PROPERTIES CO·Filed 2014·Granted Sep 26, 2017·10 cites·36 claims
- 1993US7997771B2LED array systems3M INNOVATIVE PROPERTIES CO·Filed 2004·Granted Aug 16, 2011·38 cites·57 claims
- 2093US7789538B2Back-lit displays with high illumination uniformity3M INNOVATIVE PROPERTIES CO·Filed 2006·Granted Sep 7, 2010·19 cites·45 claims
- 2193US7710511B2Liquid crystal displays with laminated diffuser plates3M INNOVATIVE PROPERTIES CO·Filed 2005·Granted May 4, 2010·21 cites·16 claims
- 2293US5976686ADiffuse reflective articles3M INNOVATIVE PROPERTIES CO·Filed 1997·Granted Nov 2, 1999·98 cites·19 claims
- 2392US7766528B2Back-lit displays with high illumination uniformity3M INNOVATIVE PROPERTIES CO·Filed 2006·Granted Aug 3, 2010·16 cites·47 claims
- 2492US7357555B2Phosphor based illumination system having an interference reflector and a display3M INNOVATIVE PROPERTIES CO·Filed 2007·Granted Apr 15, 2008·13 cites·21 claims
- 2592US7303315B2Illumination assembly using circuitized strips3M INNOVATIVE PROPERTIES CO·Filed 2004·Granted Dec 4, 2007·89 cites·21 claims
- 2691US8023065B2Optical element for lateral light spreading in edge-lit displays and system using same3M INNOVATIVE PROPERTIES CO·Filed 2005·Granted Sep 20, 2011·12 cites·19 claims
- 2791US7213958B2Phosphor based illumination system having light guide and an interference reflector3M INNOVATIVE PROPERTIES CO·Filed 2004·Granted May 8, 2007·41 cites·34 claims
- 2890US11550183B2High transmission light control film3M INNOVATIVE PROPERTIES COMPANY·Filed 2019·Granted Jan 10, 2023·5 cites·23 claims
- 2990US7446827B2Direct-lit liquid crystal displays with laminated diffuser plates3M INNOVATIVE PROPERTIES CO·Filed 2004·Granted Nov 4, 2008·44 cites·22 claims
- 3090US7385659B2Structured transflectors for enhanced ambient and backlight operation of transmissive liquid crystal displays3M INNOVATIVE PROPERTIES CO·Filed 2004·Granted Jun 10, 2008·37 cites·62 claims
- 3190US7223005B2Hybrid lightguide backlightLAMB DAVID J·Filed 2003·Granted May 29, 2007·57 cites·23 claims
- 3289US7903194B2Optical element for lateral light spreading in back-lit displays and system using same3M INNOVATIVE PROPERTIES CO·Filed 2005·Granted Mar 8, 2011·20 cites·10 claims
- 3389US7221847B2Optical elements having programmed optical structures3M INNOVATIVE PROPERTIES CO·Filed 2004·Granted May 22, 2007·34 cites·13 claims
- 3488US7497608B2Phosphor based illumination system having a long pass reflector and method of making same3M INNOVATIVE PROPERTIES CO·Filed 2007·Granted Mar 3, 2009·13 cites·20 claims
- 3588US7204631B2Phosphor based illumination system having a plurality of light guides and an interference reflector3M INNOVATIVE PROPERTIES CO·Filed 2004·Granted Apr 17, 2007·30 cites·28 claims
- 3688US6508560B2Display apparatus with corrosion-resistant light directing film3M INNOVATIVE PROPERTIES CO·Filed 2001·Granted Jan 21, 2003·29 cites·16 claims
- 3787US11099314B2Light control film with turning film and lenticular diffuser for view enhancement in the horizontal plane3M INNOVATIVE PROPERTIES CO·Filed 2018·Granted Aug 24, 2021·4 cites·21 claims
- 3887US8690373B2Back-lit displays with high illumination uniformityEPSTEIN KENNETH A·Filed 2007·Granted Apr 8, 2014·11 cites·13 claims
- 3987US7637639B2LED emitter with radial prismatic light diverter3M INNOVATIVE PROPERTIES CO·Filed 2005·Granted Dec 29, 2009·15 cites·20 claims
- 4086US7436469B2Composite diffuser plates and direct-lit liquid crystal displays using same3M INNOVATIVE PROPERTIES CO·Filed 2004·Granted Oct 14, 2008·37 cites·38 claims
- 4186US6357880B2Display apparatus with corrosion-resistant light directing film3M INNOVATIVE PROPERTIES CO·Filed 2001·Granted Mar 19, 2002·27 cites·42 claims
- 4285US8579492B2Optical film having microreplicated structures and methodsEPSTEIN KENNETH A·Filed 2007·Granted Nov 12, 2013·11 cites·3 claims
- 4385US7377679B2Phosphor based illumination system having a plurality of light guides and a display using same3M INNOVATIVE PROPERTIES CO·Filed 2007·Granted May 27, 2008·7 cites·20 claims
- 4485US6447135B1Lightguide having a directly secured reflector and method of making the same3M INNOVATIVE PROPERTIES CO·Filed 1999·Granted Sep 10, 2002·64 cites·24 claims
- 4584US10809445B2Light control film for display assemblies3M INNOVATIVE PROPERTIES CO·Filed 2018·Granted Oct 20, 2020·3 cites·24 claims
- 4684US8794809B2Light injection coupler for coupling light guidesLUNDIN DAVID J·Filed 2009·Granted Aug 5, 2014·18 cites·2 claims
- 4784US8562145B2Display system and method for projection onto non-planar surfacesROBERTS RALPH R·Filed 2011·Granted Oct 22, 2013·7 cites·15 claims
- 4884US7407313B2Phosphor based illumination system having a plurality of light guides and a display using same3M INNOVATIVE PROPERTIES CO·Filed 2007·Granted Aug 5, 2008·9 cites·17 claims
- 4984US5894539ALine light source having light pipe with rectangular cross-sectionMINNESOTA MINING & MFG·Filed 1995·Granted Apr 13, 1999·63 cites·19 claims
- 5083US5417883AProcess for controlling layer spacing in mixtures of smectic liquid crystal compoundsMINNESOTA MINING & MFG·Filed 1994·Granted May 23, 1995·39 cites·37 claims
Showing the top 50 of 113 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Kenneth A. Epstein files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →