Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6175400 | Broadband cholesteric optical device having a broadband cholesteric layer, a positive C-plate and a negative C-plate | Robert Brown, Gillian Margaret Davis, Kathryn Walsh | 2001-01-16 |