DW

David L. Wortman

3M: 4 patents #34 of 935Top 4%
📍 Woodbury, MN: #8 of 199 inventorsTop 5%
🗺 Minnesota: #127 of 4,231 inventorsTop 4%
Overall (2005): #13,060 of 245,428Top 6%
4
Patents 2005

Issued Patents 2005

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
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