Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7967443 | Projection system using reflective polarizers | Jiaying Ma | 2011-06-28 |
| 7673993 | Projection system using reflective polarizers | Jiaying Ma | 2010-03-09 |
| 7405784 | Compensators for liquid crystal displays with biaxially stretched single film with crystallization modifier | Fred J. Roska, Richard C. Allen, Matthew B. Johnson, Steven J. Rhyner, William W. Merrill +2 more | 2008-07-29 |
| 7298442 | Cholesteric liquid crystal optical bodies and methods of manufacture and use | Christopher Bowley, Ikuko Ebihara, Richard J. Pokorny, Marc D. Radcliffe, Prabhakara S. Rao +1 more | 2007-11-20 |
| 7110072 | Compensators for liquid crystal displays | Fred J. Roska, Richard C. Allen, Matthew B. Johnson, Steven J. Rhyner, William W. Merrill +2 more | 2006-09-19 |
| 6876427 | Cholesteric liquid crystal optical bodies and methods of manufacture and use | Christopher Bowley, Ikuko Ebihara, Richard J. Pokorny, Marc D. Radcliffe, Prabhakara S. Rao +1 more | 2005-04-05 |
| 6624936 | Color-compensated information displays | Keith M. Kotchick, Ikuko Ebihara | 2003-09-23 |
| 6551014 | Raised pavement marker with improved lens | Sithya S. Khieu, Thomas R. Borden | 2003-04-22 |
| 6431788 | Wear resistant pavement marking | Thomas P. Hedblom, Eric E. Rice, Curtis W. Meverden, Thomas Krech | 2002-08-13 |
| 6265061 | Retroflective articles including a cured ceramer composite coating having abrasion and stain resistant characteristics | Soonkun Kang, John L. Ethen, Christopher J. Gustafson, Sithya S. Khieu, Kanta Kumar +2 more | 2001-07-24 |
| 6132861 | Retroreflective articles including a cured ceramer composite coating having a combination of excellent abrasion, dew and stain resistant characteristics | Soonkun Kang, John L. Ethen, Christopher J. Gustafson, Tzu-Li J. Huang, Sithya S. Khieu +2 more | 2000-10-17 |
| D422932 | Pavement marker | Sithya S. Khieu | 2000-04-18 |