Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6873758 | Optical add-drop filter | Andrew Cannon Carter | 2005-03-29 |
| 6665459 | Wavelength selective optical filter | William J. Stewart, Ruth Hibberson | 2003-12-16 |
| 6449403 | Wavelength selective optical filter | William J. Stewart, Ruth Hibberson | 2002-09-10 |
| 5255075 | Optical sensor | — | 1993-10-19 |
| 5210404 | Optical sensor including a Bragg grating structure for enhanced sensitivity | William J. Stewart | 1993-05-11 |
| 4990287 | Optical devices utilizing photochromic compounds | Ian Bennion, Christopher J. Groves-Kirby, Clive Trundle | 1991-02-05 |
| 4834511 | Optical resonant assembly | Ian Bennion, Christopher Groves-Kirkby | 1989-05-30 |