Issued Patents All Time
Showing 25 most recent of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11698174 | Devices for internal daylighting with IR rejection | — | 2023-07-11 |
| 11248763 | High efficiency external daylighting devices | — | 2022-02-15 |
| 10683979 | High efficiency external daylighting devices | — | 2020-06-16 |
| 10677405 | High efficiency daylighting structure | — | 2020-06-09 |
| 10538959 | Window louver control system | David Lockett, Robert Somers Ford | 2020-01-21 |
| 10458610 | Light redirecting structure | — | 2019-10-29 |
| 10161585 | Louver assembly | — | 2018-12-25 |
| 9803817 | High efficiency daylighting structure | — | 2017-10-31 |
| 9784030 | Louvered light re-directing structure | Robert Somers Ford | 2017-10-10 |
| 9063284 | Light control film | Vivian W. Jones, Silva K. Theiss, Michael E. Lauters, Gary E. Gaides | 2015-06-23 |
| 8885256 | Optical film | Dale L. Ehnes, Alan B. Campbell | 2014-11-11 |
| 8873146 | Attachment methods for daylighting films | — | 2014-10-28 |
| 8588574 | Backlight with structured surfaces | Sanford Cobb, Jr., Kenneth A. Epstein, Wade D. Kretman | 2013-11-19 |
| 8503082 | Optical film | Dale L. Ehnes, Alan B. Campbell | 2013-08-06 |
| 7873256 | Backlight with structured surfaces | Sanford Cobb, Jr., Kenneth A. Epstein, Wade D. Kretman | 2011-01-18 |
| 7852570 | Optical film having a set of diffractive features randomly repeating at variable distances | Jeffrey E. Clements, Mark R. Dupre | 2010-12-14 |
| 7677146 | Cutting tool using one or more machined tool tips in a continuous or interrupted cut fast tool servo | Alan B. Campbell, Dale L. Ehnes | 2010-03-16 |
| 7669508 | Cutting tool using one or more machined tool tips with diffractive features | Jeffrey E. Clements, Mark R. Dupre | 2010-03-02 |
| 7628100 | Cutting tool using one or more machined tool tips with diffractive features in a continuous or interrupted cut fast tool servo | Jeffrey E. Clements, Mark R. Dupre | 2009-12-08 |
| 7328638 | Cutting tool using interrupted cut fast tool servo | Alan B. Campbell, Dale L. Ehnes, Daniel S. Wertz | 2008-02-12 |
| 7320538 | Optical film having a structured surface with concave pyramid-shaped structures | Byung-Soo Ko, Leland R. Whitney, Dongwon Chae | 2008-01-22 |
| 7303322 | Multiple lightguide backlight | David J. Lamb, Keith M. Kotchick, Kenneth A. Epstein | 2007-12-04 |
| 7223005 | Hybrid lightguide backlight | David J. Lamb, Keith M. Kotchick, Mark B. O'Neill, Patrick H. Marushin, Kenneth A. Epstein +1 more | 2007-05-29 |
| 7221847 | Optical elements having programmed optical structures | Sanford Cobb, Jr., Kenneth A. Epstein, Wade D. Kretman | 2007-05-22 |
| 7220026 | Optical film having a structured surface with offset prismatic structures | Byung-Soo Ko, Dongwon Chae | 2007-05-22 |