Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5382502 | Hydroxyquinoline cyan couplers and their process of production | Philip T. S. Lau, Stanley W. Cowan | 1995-01-17 |
| 5262284 | Arylidene pyrazolone coupler | Philip T. S. Lau, Stephen P. Singer | 1993-11-16 |
| 5234890 | Multicolor dye-containing beads for multilayer dye-donor element for laser-induced thermal dye transfer | Mitchell S. Burberry, John M. Noonan, Thomas A. Machell | 1993-08-10 |
| 5234891 | Mixture of dye-containing beads for laser-induced thermal dye transfer | Mitchell S. Burberry, John M. Noonan, Thomas A. Machell | 1993-08-10 |
| 5118599 | Yellow couplers for photographic elements and processes | Philip T. S. Lau, Frederick Rick Green | 1992-06-02 |
| 5091291 | Alkyl substituted photographic couplers and photographic elements and processes employing same | Philip T. S. Lau | 1992-02-25 |
| 5043469 | Process for preparing 5-substituted aminophenols | Philip T. S. Lau | 1991-08-27 |
| 4940812 | 5-substituted aminophenols | Philip T. S. Lau | 1990-07-10 |
| 4422972 | Novel light-sensitive compounds and photoreactable compositions comprising same | Robert C. Daly, Samir Y. Farid | 1983-12-27 |
| 4302527 | Photoreactive compositions comprising a light sensitive compound and another compound with reactive site | Robert C. Daly, Samir Y. Farid | 1981-11-24 |