DW

David L. Wortman

3M: 26 patents #455 of 11,543Top 4%
Overall (All Time): #156,097 of 4,157,543Top 4%
26
Patents All Time

Issued Patents All Time

Showing 25 most recent of 26 patents

Patent #TitleCo-InventorsDate
7833593 High efficiency optical devices Andrew J. Ouderkirk, Michael F. Weber, Sanford Cobb, Jr. 2010-11-16
7423708 Display having a reflective polarizer Michael F. Weber, Olester Benson, Jr., Sanford Cobb, Jr., James M. Jonza, Andrew J. Ouderkirk +1 more 2008-09-09
7147903 High efficiency optical devices Andrew J. Ouderkirk, Michael F. Weber, Sanford Cobb, Jr. 2006-12-12
7038745 Brightness enhancing reflective polarizer Michael F. Weber, Olester Benson, Jr., Sanford Cobb, Jr., James M. Jonza, Andrew J. Ouderkirk +1 more 2006-05-02
6934082 Optical devices using reflecting polarizing materials Richard C. Allen, Sanford Cobb, Jr., Elisa M. Cross, Susan L. Kent, Timothy J. Nevitt +2 more 2005-08-23
6924014 High efficiency optical devices Andrew J. Ouderkirk, Michael F. Weber, Sanford Cobb, Jr. 2005-08-02
6905220 Backlight system with multilayer optical film reflector Sanford Cobb, Jr., Brian D. Cull, Michael F. Weber, Andrew J. Ouderkirk 2005-06-14
6888675 Transflective displays with reflective polarizing transflector Andrew J. Ouderkirk, Sanford Cobb, Jr., Brian D. Cull, Michael F. Weber 2005-05-03
6641883 High efficiency optical devices Michael F. Weber, Andrew J. Ouderkirk, Sanford Cobb, Jr. 2003-11-04
6543153 Reflective polarizer having improved properties and optical display with improved reflective polarizer Michael F. Weber, Olester Benson, Jr., Sanford Cobb, Jr., James M. Jonza, Andrew J. Ouderkirk +1 more 2003-04-08
6515785 Optical devices using reflecting polarizing materials Sanford Cobb, Jr. 2003-02-04
6447135 Lightguide having a directly secured reflector and method of making the same Sanford Cobb, Jr., Kenneth A. Epstein, Mark E. Gardiner, Wade D. Kretman 2002-09-10
6262842 Transflective displays with reflective polarizing transflector Andrew J. Ouderkirk, Sanford Cobb, Jr., Brian D. Cull, Michael F. Weber 2001-07-17
6210785 High efficiency optical devices Michael F. Weber, Andrew J. Ouderkirk, Sanford Cobb, Jr. 2001-04-03
6124971 Transflective displays with reflective polarizing transflector Andrew J. Ouderkirk, Sanford Cobb, Jr., Brian D. Cull, Michael F. Weber 2000-09-26
6101032 Light fixture having a multilayer polymeric film Mark E. Gardiner, Andrew J. Ouderkirk, James M. Jonza, Michael F. Weber 2000-08-08
6091547 Luminance control film Mark E. Gardiner, Mark B. O'Neill 2000-07-18
6080467 High efficiency optical devices Michael F. Weber, Andrew J. Ouderkirk, Sanford Cobb, Jr. 2000-06-27
6025897 Display with reflective polarizer and randomizing cavity Michael F. Weber, Olester Benson, Jr., Sanford Cobb, Jr., James M. Jonza, Andrew J. Ouderkirk +1 more 2000-02-15
6018419 Diffuse reflectors Sanford Cobb, Jr., Brian D. Cull, Andrew J. Ouderkirk, Michael F. Weber 2000-01-25
5828488 Reflective polarizer display Andrew J. Ouderkirk, Olester Benson, Jr., Sanford Cobb, Jr., James M. Jonza, Michael F. Weber +1 more 1998-10-27
5825542 Diffusely reflecting multilayer polarizers and mirrors Sanford Cobb, Jr., Brian D. Cull, Andrew J. Ouderkirk, Michael F. Weber 1998-10-20
5771328 Light directing film having variable height structured surface and light directing article constructed therefrom Sanford Cobb, Jr., Mark E. Gardiner 1998-06-23
5363470 Displacing an optical lighting film's linear array of grooves to facilitate emission of light 1994-11-08
5202683 Optical traffic preemption detector Steven M. Hamer, Thomas Lunn 1993-04-13