Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6624872 | Optical radiation filter | Duncan Anderson, Claire Blay, Robert Brown, Nathan James Smith, Kathryn Walsh | 2003-09-23 |
| 6356674 | Electrically controllable grating, and optical elements having an electrically controllable grating | Robert Brown, Paul May | 2002-03-12 |
| 6345102 | Vehicle loudspeakers | Anthony Malcolm McDonald, Robin Meredith Courtney Pain, Martin James Stone | 2002-02-05 |
| 6339464 | Filter and method of making an optical device | Duncan Anderson, Claire Blay, Robert Brown, Nathan James Smith, Kathryn Walsh | 2002-01-15 |
| 6278790 | Electroacoustic transducers comprising vibrating panels | Thomas Lundie, Anthony Malcolm McDonald | 2001-08-21 |
| 6175400 | Broadband cholesteric optical device having a broadband cholesteric layer, a positive C-plate and a negative C-plate | Anderson James Duncan, Robert Brown, Kathryn Walsh | 2001-01-16 |
| 6061108 | Broadband cholesteric polarizer and an optical device employing the same | Duncan Anderson, Kathryn Walsh, Robert Brown, Masayuki Nakazawa | 2000-05-09 |
| 5828471 | Illumination system and display device | Kathryn Walsh, Paul May | 1998-10-27 |
| 5822029 | Illumination system and display device | Kathryn Walsh | 1998-10-13 |
| 5812233 | Polarization sensitive devices and methods of manufacture thereof | Kathryn Walsh, Paul May | 1998-09-22 |
| 5808709 | Illuminator with polarization separating anisotropic layer between light guide and reflector | Duncan Anderson | 1998-09-15 |
| 5671034 | Polarisation dependent refractive device exhibiting independtly varying first and second indices of refraction and methods of manufacture thereof | Paul May, Kathryn Walsh | 1997-09-23 |
| 5640267 | Optical apparatus | Paul May | 1997-06-17 |