Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5137798 | A pit-forming optical recording media and process for producing the same | Peter J. Duggan, Stephen J. Abbott, Akihiko Kuroiwa, Toshiki Aoi, Tezumbumi Kamijo | 1992-08-11 |
| 5047516 | Azo compound suitable for use in non-linear optics | Simon Allen | 1991-09-10 |
| 4992202 | Non-linear optics | Simon Allen, John O. Morley | 1991-02-12 |
| 4992203 | Non-linear optics | Simon Allen, John O. Morley | 1991-02-12 |
| 4981612 | Optical element having non-linear optical properties | Simon Allen, Joseph Zyss | 1991-01-01 |
| 4965020 | Non-linear optical device | Simon Allen, John O. Morley | 1990-10-23 |
| 4946629 | Optical element having non-linear optical properties including a substrate having a coating of an azo compound | Simon Allen, Richard A. Hann | 1990-08-07 |
| 4894186 | Substituted pyrazoline having non-linear optical properties | Brian D. Bothwell | 1990-01-16 |
| 4804747 | Azo compound having one or two aliphatic or cycloaliphatic groups containing a total of 8 to 40 carbon atoms therein | Simon Allen, Richard A. Hann | 1989-02-14 |
| 4780543 | 1-phenyl-3-(2-nitroethenyl)pyrazoline and 1-phenyl-3-(2,2-dicyanoethenyl)pyrazoline | Brian D. Bothwell | 1988-10-25 |
| 4742173 | Dithiene derivative | Damien G. McDonnell, Anthony J. Hughes, David J. Thompson | 1988-05-03 |
| 4668811 | Dithiene derivative | Damien G. McDonnell, Anthony J. Hughes, David J. Thompson | 1987-05-26 |
| 4606859 | Infra-red absorber | Peter J. Duggan | 1986-08-19 |