KE

Kenneth A. Epstein

3M: 86 patents #43 of 11,543Top 1%
📍 Okabena, MN: #8 of 412 inventorsTop 2%
🗺 Minnesota: #274 of 52,454 inventorsTop 1%
Overall (All Time): #18,499 of 4,157,543Top 1%
88
Patents All Time

Issued Patents All Time

Showing 51–75 of 88 patents

Patent #TitleCo-InventorsDate
7478913 Back-lit displays with high illumination uniformity Kenneth J. Hanley, James A. Stevenson, Robert M. Emmons 2009-01-20
7446827 Direct-lit liquid crystal displays with laminated diffuser plates Byungsoo Ko, Mark D. Gehlsen, Chingwen Chen, Robert M. Emmons, James W. Laumer +7 more 2008-11-04
7436469 Composite diffuser plates and direct-lit liquid crystal displays using same Mark D. Gehlsen, Chingwen Chen, Byungsoo Ko, Robert M. Emmons, James W. Laumer +5 more 2008-10-14
7407313 Phosphor based illumination system having a plurality of light guides and a display using same Craig R. Schardt, John C. Schultz, Andrew J. Ouderkirk, John A. Wheatley, Michael F. Weber +1 more 2008-08-05
7385659 Structured transflectors for enhanced ambient and backlight operation of transmissive liquid crystal displays Keith M. Kotchick, Patrick H. Marushin, Donald J. McClure, Andrew J. Ouderkirk 2008-06-10
7377679 Phosphor based illumination system having a plurality of light guides and a display using same John C. Schultz, Andrew J. Ouderkirk, Craig R. Schardt, John A. Wheatley, Michael F. Weber +1 more 2008-05-27
7357555 Phosphor based illumination system having an interference reflector and a display Andrew J. Ouderkirk, Michael F. Weber, John A. Wheatley, James E. Watson 2008-04-15
7357554 Phosphor based illumination system having a light guide, an interference reflector and a display Michael F. Weber, John A. Wheatley, Andrew J. Ouderkirk, James E. Watson 2008-04-15
7350953 Phosphor based illumination system having a short pass reflector and method of making same John A. Wheatley, Andrew J. Ouderkirk, Michael F. Weber, James E. Watson 2008-04-01
7322731 Color mixing illumination light unit and system using same Michael F. Weber 2008-01-29
7303322 Multiple lightguide backlight David J. Lamb, Keith M. Kotchick, Mark E. Gardiner 2007-12-04
7303315 Illumination assembly using circuitized strips Andrew J. Ouderkirk, Denny Aeschliman, Hung T. Tran, Michael A. Meis, John C. Schultz 2007-12-04
7255469 Phosphor based illumination system having a light guide and an interference reflector John A. Wheatley, Andrew J. Ouderkirk, Michael F. Weber, James E. Watson 2007-08-14
7223005 Hybrid lightguide backlight David J. Lamb, Keith M. Kotchick, Mark E. Gardiner, Mark B. O'Neill, Patrick H. Marushin +1 more 2007-05-29
7221847 Optical elements having programmed optical structures Mark E. Gardiner, Sanford Cobb, Jr., Wade D. Kretman 2007-05-22
7213958 Phosphor based illumination system having light guide and an interference reflector Andrew J. Ouderkirk, Michael F. Weber, John A. Wheatley, James E. Watson 2007-05-08
7204631 Phosphor based illumination system having a plurality of light guides and an interference reflector Michael F. Weber, John A. Wheatley, Andrew J. Ouderkirk, James E. Watson 2007-04-17
7204630 Phosphor based illumination system having a plurality of light guides and an interference reflector Craig R. Schardt, John C. Schultz, Andrew J. Ouderkirk, John A. Wheatley, Michael F. Weber +1 more 2007-04-17
7182498 Phosphor based illumination system having a plurality of light guides and an interference reflector John C. Schultz, Andrew J. Ouderkirk, Craig R. Schardt, John A. Wheatley, Michael F. Weber +1 more 2007-02-27
7088405 Structured transflectors for enhanced ambient and backlight operation of transmissive liquid crystal displays Keith M. Kotchick, Patrick H. Marushin, Donald J. McClure, Andrew J. Ouderkirk 2006-08-08
7052168 Illumination device Leland R. Whitney, Charles D. Hoyle, Wade D. Kretman 2006-05-30
6845212 Optical element having programmed optical structures Mark E. Gardiner, Sanford Cobb, Jr., Wade D. Kretman 2005-01-18
6801276 Optical component with a structured element Olester Benson, Jr., Andrew J. Ouderkirk 2004-10-05
6707611 Optical film with variable angle prisms Mark E. Gardiner, Sanford Cobb, Jr., Wade D. Kretman 2004-03-16
6592234 Frontlit display Robert Wenz, Gary T. Boyd, Stephan J. Pankratz 2003-07-15