Epstein; Kenneth A.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Epstein; Kenneth A..The latest application filed is for "optical system with switchable diffuser".

Company Profile

16.87.99

Epstein; Kenneth A. - St. Paul MN
Epstein; Kenneth A. - Saint Paul MN
Epstein; Kenneth A. - St. Pau MN

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Light control film with turning film and lenticular diffuser for view enhancement in the horizontal plane Grant 11,448,814 - Emmons , et al. September 20, 2	2022-09-20
Optical System With Switchable Diffuser App 20220214027 - Wheatley; John A. ; et al.	2022-07-07
Asymmetric turning film with top-hat light output distributions Grant 11,307,333 - Emmons , et al. April 19, 2	2022-04-19
Retroreflecting article including retarder Grant 11,300,716 - Wheatley , et al. April 12, 2	2022-04-12
Light Control Film With Turning Film And Lenticular Diffuser For View Enhancement In The Horizontal Plane App 20220050231 - Emmons; Robert M. ; et al.	2022-02-17
Light Control Film With Turning Film And Lenticular Diffuser For View Enhancement In The Horizontal Plane App 20220019014 - Emmons; Robert M. ; et al.	2022-01-20
Light Control Film App 20220019007 - Schmidt; Daniel J. ; et al.	2022-01-20
Light Control Film With Turning Film And Lenticular Diffuser For View Enhancement In The Horizontal Plane App 20210382222 - EPSTEIN; Kenneth A. ; et al.	2021-12-09
Backlight including wide-web turning film and reflective polarizer with quarter-wave retarder Grant 11,187,847 - Sanford , et al. November 30, 2	2021-11-30
High Transmission Light Control Film App 20210333624 - SCHMIDT; Daniel J. ; et al.	2021-10-28
Backlight Including Wide-Web Turning Film and Reflective Polarizer with Quarter-Wave Retarder App 20210278586 - Sanford; Quinn D. ; et al.	2021-09-09
Light control film with turning film and lenticular diffuser for view enhancement in the horizontal plane Grant 11,099,314 - Epstein , et al. August 24, 2	2021-08-24
Multiplexing Backlight With Asymmetric Turning Film App 20210165138 - Epstein; Kenneth A. ; et al.	2021-06-03
Multiplexing backlight with asymmetric turning film Grant 10,955,592 - Epstein , et al. March 23, 2	2021-03-23
High Transmission Light Control Film App 20200400865 - SCHMIDT; Daniel J. ; et al.	2020-12-24
Collimating step-wedge light guide Grant 10,837,622 - Epstein , et al. November 17, 2	2020-11-17
High Transmission Light Control Film App 20200341173 - Schmidt; Daniel J. ; et al.	2020-10-29
Light control film for display assemblies Grant 10,809,445 - Johnson , et al. October 20, 2	2020-10-20
Collimating light guide Grant 10,732,344 - Epstein , et al.	2020-08-04
Faceted Microstructured Surface App 20200142104 - Rosen; David A. ; et al.	2020-05-07
Faceted Microstructured Surface App 20200064525 - Derks; Kristopher J. ; et al.	2020-02-27
Multiplexing Backlight With Asymmetric Turning Film App 20200057343 - EPSTEIN; Kenneth A. ; et al.	2020-02-20
Retroreflecting Article Including Retarder App 20200003935 - Wheatley; John A. ; et al.	2020-01-02
Light Control Film For Display Assemblies App 20190346615 - JOHNSON; Nicholas A. ; et al.	2019-11-14
Asymmetric Turning Film With Top-hat Light Output Distributions App 20190339427 - EMMONS; Robert M. ; et al.	2019-11-07
Light Control Film With Turning Film And Lenticular Diffuser For View Enhancement In The Horizontal Plane App 20190339438 - EPSTEIN; Kenneth A. ; et al.	2019-11-07
Temporally multiplexing backlight with asymmetric turning film Grant 10,388,230 - Johnson , et al. A	2019-08-20
Asymmetric turning film with multiple light sources Grant 10,371,350 - Johnson , et al.	2019-08-06
Optical film Grant 10,288,796 - Boyd , et al.	2019-05-14
Optical film stack with retardance layer having in-plane retardance of greater than 2.0 microns Grant 10,114,162 - Epstein , et al. October 30, 2	2018-10-30
Collimating Light Guide App 20180267228 - EPSTEIN; Kenneth A. ; et al.	2018-09-20
Collimating Step-wedge Light Guide App 20180246266 - EPSTEIN; Kenneth A. ; et al.	2018-08-30
Object sensor Grant 10,031,260 - Brigham , et al. July 24, 2	2018-07-24
Optical Film App 20180100963 - Boyd; Gary T. ; et al.	2018-04-12
Optical System With Switchable Diffuser App 20180003364 - Wheatley; John A. ; et al.	2018-01-04
Higher transmission light control film comprising a transmissive region and an absorptive region each having a different index of refraction Grant 9,804,311 - Gaides , et al. October 31, 2	2017-10-31
Antireflective OLED construction Grant 9,773,847 - Epstein , et al. September 26, 2	2017-09-26
Emissive display with hybrid polarizer Grant 9,761,843 - Haag , et al. September 12, 2	2017-09-12
Systems and methods for controlling backlight output characteristics Grant 9,690,038 - Boyd , et al. June 27, 2	2017-06-27
Asymmertic Turning Film With Multiple Light Sources App 20170175976 - Johnson; Nicholas A. ; et al.	2017-06-22
Temporally Multiplexing Backlight With Asymmertic Turning Film App 20170116930 - Johnson; Nicholas A. ; et al.	2017-04-27
Object Sensor App 20160320525 - BRIGHAM; Scott E. ; et al.	2016-11-03
Higher Transmission Light Control Film App 20160216420 - Gaides; Gary E. ; et al.	2016-07-28
Higher transmission light control film Grant 9,335,449 - Gaides , et al. May 10, 2	2016-05-10
Antireflective Oled Construction App 20160118448 - Epstein; Kenneth A. ; et al.	2016-04-28
Emissive Display With Hybrid Polarizer App 20150325813 - HAAG; Adam D. ; et al.	2015-11-12
Emissive Display With Reflective Polarizer App 20150325816 - HAAG; Adam D. ; et al.	2015-11-12
Brightness enhancing film and film based diffuser for improved illumination uniformity of displays Grant 9,001,286 - Epstein , et al. April 7, 2	2015-04-07
Hollow backlight with structured films Grant 8,848,132 - O'Neill , et al. September 30, 2	2014-09-30
Light injection coupler for coupling light guides Grant 8,794,809 - Lundin , et al. August 5, 2	2014-08-05
Hollow backlight with tilted light source Grant 8,757,858 - Aastuen , et al. June 24, 2	2014-06-24
Back-lit displays with high illumination uniformity Grant 8,690,373 - Epstein , et al. April 8, 2	2014-04-08
Optical Film Stack App 20130335823 - Epstein; Kenneth A. ; et al.	2013-12-19
Backlight with structured surfaces Grant 8,588,574 - Gardiner , et al. November 19, 2	2013-11-19
Optical film having microreplicated structures and methods Grant 8,579,492 - Epstein , et al. November 12, 2	2013-11-12
Liquid crystal displays with laminated diffuser plates Grant 8,576,357 - Gehlsen , et al. November 5, 2	2013-11-05
Display system and method for projection onto non-planar surfaces Grant 8,562,145 - Roberts , et al. October 22, 2	2013-10-22
Display System And Method For Projection Onto Non-planar Surfaces App 20120327297 - Roberts; Ralph R. ; et al.	2012-12-27
LED array systems Grant 8,246,220 - Epstein , et al. August 21, 2	2012-08-21
Direct-LIT liquid crystal displays with laminated diffuser plates Grant 8,125,589 - Ko , et al. February 28, 2	2012-02-28
Lighting System And Light Injection Coupler Therefor App 20120020107 - Lundin; David J. ; et al.	2012-01-26
LED Array Systems App 20110267799 - Epstein; Kenneth A. ; et al.	2011-11-03
Systems And Methods For Controlling Backlight Output Characteristics App 20110261584 - Boyd; Gary T. ; et al.	2011-10-27
Optical Element For Lateral Light Spreading In Edge-lit Displays And System Using Same App 20110249446 - Epstein; Kenneth A. ; et al.	2011-10-13
Optical element for lateral light spreading in edge-lit displays and system using same Grant 8,023,065 - Epstein , et al. September 20, 2	2011-09-20
LED array systems Grant 7,997,771 - Epstein , et al. August 16, 2	2011-08-16
Hollow Backlight With Tilted Light Source App 20110134659 - Aastuen; David J. W. ; et al.	2011-06-09
Optical element for lateral light spreading in back-lit displays and system using same Grant 7,903,194 - Epstein , et al. March 8, 2	2011-03-08
Hollow Backlight With Structured Films App 20110051047 - O'Neill; Mark B. ; et al.	2011-03-03
Brightness Enhancing Film And Film Based Diffuser For Improved Illumination Uniformity Of Displays App 20110037736 - Epstein; Kenneth A. ; et al.	2011-02-17
Backlight with structured surfaces Grant 7,873,256 - Gardiner , et al. January 18, 2	2011-01-18
Back-lit displays with high illumination uniformity Grant 7,789,538 - Epstein , et al. September 7, 2	2010-09-07
Higher Transmission Light Control Film App 20100214506 - Gaides; Gary E. ; et al.	2010-08-26
Back-lit displays with high illumination uniformity Grant 7,766,528 - Epstein , et al. August 3, 2	2010-08-03
Liquid Crystal Displays With Laminated Diffuser Plates App 20100188754 - Gehlsen; Mark D. ; et al.	2010-07-29
Back-lit Displays With High Illumination Uniformity App 20100135004 - Epstein; Kenneth A. ; et al.	2010-06-03
Curved Sided Cone Structures For Controlling Gain And Viewing Angle In An Optical Film App 20100128351 - Epstein; Kenneth A. ; et al.	2010-05-27
Liquid crystal displays with laminated diffuser plates Grant 7,710,511 - Gehlsen , et al. May 4, 2	2010-05-04
Illumination assembly and system Grant 7,695,180 - Schardt , et al. April 13, 2	2010-04-13
LED emitter with radial prismatic light diverter Grant 7,637,639 - Epstein December 29, 2	2009-12-29
Direct-lit Liquid Crystal Displays With Laminated Diffuser Plates App 20090122228 - Ko; Byungsoo ; et al.	2009-05-14
Structured Oriented Films For Use In Displays App 20090067048 - Battiato; James M. ; et al.	2009-03-12
Phosphor based illumination system having a long pass reflector and method of making same Grant 7,497,608 - Wheatley , et al. March 3, 2	2009-03-03
Back-lit displays with high illumination uniformity Grant 7,478,913 - Epstein , et al. January 20, 2	2009-01-20
Direct-lit liquid crystal displays with laminated diffuser plates Grant 7,446,827 - Ko , et al. November 4, 2	2008-11-04
Led Light Extraction Bar And Injection Optic For Thin Lightguide App 20080260328 - Epstein; Kenneth A.	2008-10-23
Lightguides Having Curved Light Injectors App 20080260329 - Epstein; Kenneth A.	2008-10-23
Composite diffuser plates and direct-lit liquid crystal displays using same Grant 7,436,469 - Gehlsen , et al. October 14, 2	2008-10-14
Phosphor based illumination system having a plurality of light guides and a display using same Grant 7,407,313 - Schardt , et al. August 5, 2	2008-08-05
Structured transflectors for enhanced ambient and backlight operation of transmissive liquid crystal displays Grant 7,385,659 - Kotchick , et al. June 10, 2	2008-06-10
Phosphor based illumination system having a plurality of light guides and a display using same Grant 7,377,679 - Schultz , et al. May 27, 2	2008-05-27
Back-lit Displays With High Illumination Uniformity App 20080111947 - Epstein; Kenneth A. ; et al.	2008-05-15
Back-lit Displays With High Illumination Uniformity App 20080111945 - Epstein; Kenneth A. ; et al.	2008-05-15
Back-lit Displays With High Illumination Uniformity App 20080111948 - Epstein; Kenneth A. ; et al.	2008-05-15
Back-lit Displays With High Illumination Uniformity App 20080112184 - Epstein; Kenneth A. ; et al.	2008-05-15
Phosphor based illumination system having a light guide, an interference reflector and a display Grant 7,357,554 - Weber , et al. April 15, 2	2008-04-15
Phosphor based illumination system having an interference reflector and a display Grant 7,357,555 - Ouderkirk , et al. April 15, 2	2008-04-15
Phosphor based illumination system having a short pass reflector and method of making same Grant 7,350,953 - Wheatley , et al. April 1, 2	2008-04-01
Backlight With Structured Surfaces App 20080050088 - Gardiner; Mark E. ; et al.	2008-02-28
Optical Film Having Microreplicated Structures And Methods App 20080049341 - Epstein; Kenneth A. ; et al.	2008-02-28
Color mixing illumination light unit and system using same Grant 7,322,731 - Epstein , et al. January 29, 2	2008-01-29
Phosphor Based Illumination System Having An Interference Reflector And A Display App 20070285943 - Ouderkirk; Andrew J. ; et al.	2007-12-13
Multiple lightguide backlight Grant 7,303,322 - Lamb , et al. December 4, 2	2007-12-04
Illumination assembly using circuitized strips Grant 7,303,315 - Ouderkirk , et al. December 4, 2	2007-12-04
Phosphor Based Illumination System Having A Long Pass Reflector And Method Of Making Same App 20070274098 - Wheatley; John A. ; et al.	2007-11-29
Illumination Light Unit and Optical System Using Same App 20070236628 - Epstein; Kenneth A.	2007-10-11
Led Light Confinement Element App 20070200118 - Epstein; Kenneth A.	2007-08-30
Phosphor Based Illumination System Having a Plurality of Light Guides and a Display Using Same App 20070195549 - Schardt; Craig R. ; et al.	2007-08-23
Phosphor Based Illumination System Having A Short Pass Reflector And Method Of Making Same App 20070189035 - Wheatley; John A. ; et al.	2007-08-16
Phosphor based illumination system having a light guide and an interference reflector Grant 7,255,469 - Wheatley , et al. August 14, 2	2007-08-14
Display device and method of controlling light therein App 20070165154 - Whitney; Leland R. ; et al.	2007-07-19
Phosphor Based Illumination System Having A Long Pass Reflector And Method Of Making Same App 20070147076 - Weber; Michael F. ; et al.	2007-06-28
Led Emitter With Radial Prismatic Light Diverter App 20070139798 - Epstein; Kenneth A.	2007-06-21
Phosphor Based Illumination System Having A Plurality Of Light Guides And A Display Using Same App 20070127262 - Schultz; John C. ; et al.	2007-06-07
Hybrid lightguide backlight Grant 7,223,005 - Lamb , et al. May 29, 2	2007-05-29
Optical elements having programmed optical structures Grant 7,221,847 - Gardiner , et al. May 22, 2	2007-05-22
Phosphor based illumination system having light guide and an interference reflector Grant 7,213,958 - Ouderkirk , et al. May 8, 2	2007-05-08
Phosphor based illumination system having a plurality of light guides and an interference reflector Grant 7,204,630 - Schardt , et al. April 17, 2	2007-04-17
Phosphor based illumination system having a plurality of light guides and an interference reflector Grant 7,204,631 - Weber , et al. April 17, 2	2007-04-17
Illumination Assembly And System App 20070047254 - Schardt; Craig R. ; et al.	2007-03-01
Phosphor based illumination system having a plurality of light guides and an interference reflector Grant 7,182,498 - Schultz , et al. February 27, 2	2007-02-27
Back-lit displays with high illumination uniformity App 20070030415 - Epstein; Kenneth A.	2007-02-08
Optical element for lateral light spreading in back-lit displays and system using same App 20060290842 - Epstein; Kenneth A. ; et al.	2006-12-28
Optical element for lateral light spreading in edge-lit displays and system using same App 20060290844 - Epstein; Kenneth A. ; et al.	2006-12-28
Illumination element and system using same App 20060290843 - Epstein; Kenneth A. ; et al.	2006-12-28
Color mixing illumination light unit and system using same App 20060291238 - Epstein; Kenneth A. ; et al.	2006-12-28
Structured oriented films for use in displays App 20060274244 - Battiato; James M. ; et al.	2006-12-07
Direct lit backlight with light recycling and source polarizers App 20060187650 - Epstein; Kenneth A. ; et al.	2006-08-24
Structured transflectors for enhanced ambient and backlight operation of transmissive liquid crystal displays Grant 7,088,405 - Kotchick , et al. August 8, 2	2006-08-08
Illumination device Grant 7,052,168 - Epstein , et al. May 30, 2	2006-05-30
Illumination assembly using circuitized strips App 20060098438 - Ouderkirk; Andrew J. ; et al.	2006-05-11
Liquid crystal displays with laminated diffuser plates App 20060082699 - Gehlsen; Mark D. ; et al.	2006-04-20
Direct-lit liquid crystal displays with laminated diffuser plates App 20060082698 - Ko; Byungsoo ; et al.	2006-04-20
Composite diffuser plates and direct-lit liquid crystal displays using same App 20060082700 - Gehlsen; Mark D. ; et al.	2006-04-20
Backlight with structured surfaces App 20060051048 - Gardiner; Mark E. ; et al.	2006-03-09
Phosphor based illumination system having a plurality of light guides and a display using same App 20060001037 - Schardt; Craig R. ; et al.	2006-01-05
Phosphor based illumination system having a plurality of light guides and a display using same App 20060002131 - Schultz; John C. ; et al.	2006-01-05
Phosphor based illumination system having a long pass reflector and method of making same App 20060002101 - Wheatley; John A. ; et al.	2006-01-05
Phosphor based illumination system having a short pass reflector and method of making same App 20060002141 - Ouderkirk; Andrew J. ; et al.	2006-01-05
Phosphor based illumination system having a short pass reflector and method of making same App 20060002108 - Ouderkirk; Andrew J. ; et al.	2006-01-05
Phosphor based illumination system having a long pass reflector and method of making same App 20060002678 - Weber; Michael F. ; et al.	2006-01-05
Led array systems App 20050265029 - Epstein, Kenneth A. ; et al.	2005-12-01
Transflector App 20050237749 - Epstein, Kenneth A. ; et al.	2005-10-27
Illumination device App 20050135116 - Epstein, Kenneth A. ; et al.	2005-06-23
Hybrid lightguide backlight App 20050135117 - Lamb, David J. ; et al.	2005-06-23
Multiple lightguide backlight App 20050135115 - Lamb, David J. ; et al.	2005-06-23
Optical film having microeplicated structures; and methods App 20050024754 - Epstein, Kenneth A. ; et al.	2005-02-03
Optical element having programmed optical structures Grant 6,845,212 - Gardiner , et al. January 18, 2	2005-01-18
Optical elements having programmed optical structures App 20050001043 - Gardiner, Mark E. ; et al.	2005-01-06
Structured transflectors for enhanced ambient and backlight operation of transmissive liquid crystal displays App 20040223099 - Kotchick, Keith M. ; et al.	2004-11-11
Structured transflectors for enhanced ambient and backlight operation of transmissive liquid crystal displays App 20040223100 - Kotchick, Keith M. ; et al.	2004-11-11
Optical component with a structured element Grant 6,801,276 - Epstein , et al. October 5, 2	2004-10-05
Optical film with variable angle prisms Grant 6,707,611 - Gardiner , et al. March 16, 2	2004-03-16
Frontlit display Grant 6,592,234 - Epstein , et al. July 15, 2	2003-07-15
Optical film with variable angle prisms App 20030112521 - Gardiner, Mark E. ; et al.	2003-06-19
Light guide for use with backlit display Grant 6,576,887 - Whitney , et al. June 10, 2	2003-06-10
Optical Element Having Programmed Optical Structures App 20030103760 - GARDINER, MARK E. ; et al.	2003-06-05
Optical film with variable angle prisms Grant 6,560,026 - Gardiner , et al. May 6, 2	2003-05-06
Optical film having microreplicated structures; and methods App 20030058553 - Epstein, Kenneth A. ; et al.	2003-03-27
Light guide for use with backlit display App 20030034445 - Boyd, Gary T. ; et al.	2003-02-20
Optical film having microreplicated structures; and methods App 20030035231 - Epstein, Kenneth A. ; et al.	2003-02-20
Display apparatus with corrosion-resistant light directing film Grant 6,508,560 - Epstein , et al. January 21, 2	2003-01-21
Frontlit display App 20020149925 - Epstein, Kenneth A. ; et al.	2002-10-17
Display apparatus with corrosion-Resistant light directing film App 20020067547 - Epstein, Kenneth A. ; et al.	2002-06-06
Optical film with variable angle prisms App 20020057497 - Gardiner, Mark E. ; et al.	2002-05-16
Light guide with extraction structures Grant 6,379,016 - Boyd , et al. April 30, 2	2002-04-30
Optical film with variable angle prisms Grant 6,356,391 - Gardiner , et al. March 12, 2	2002-03-12
Display apparatus with corrosion-resistant light directing film App 20010019452 - Epstein, Kenneth A. ; et al.	2001-09-06
Chiral liquid crystal compounds having a fluorinated terminal portion Grant 6,139,924 - Keyes , et al. October 31, 2	2000-10-31
Diffuse reflective articles Grant 5,976,686 - Kaytor , et al. November 2, 1	1999-11-02
Line light source having light pipe with rectangular cross-section Grant 5,894,539 - Epstein April 13, 1	1999-04-13
Front-lit liquid crystal display having brightness enhancing film with microridges which directs light through the display to a reflector Grant 5,608,550 - Epstein , et al. March 4, 1	1997-03-04
Process for controlling layer spacing in mixtures of smectic liquid crystal compounds Grant 5,417,883 - Epstein , et al. May 23, 1	1995-05-23