Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6271355 | Amine pyrazole nickel phthalocyanine dyes for coloration | Denis Robert Annesley Ridyard | 2001-08-07 |
| 5820661 | Ink compositions containing disazo dyes | Peter Gregory, Mark Kenworthy | 1998-10-13 |
| 5703215 | Water-soluble dyes which are polymerizable containing molecules which contain a nucleophilic group and an electrophilic group | Andrew Paul Shawcross | 1997-12-30 |
| 5474580 | Chemical compounds | Andrew Paul Shawcross | 1995-12-12 |
| 5306813 | Reactive dyes having a bulky linker group | John A. Taylor | 1994-04-26 |
| 5171852 | Triphenodioxazine reactive dyes having sulphonate ester groups | Denis Robert Annesley Ridyard, Brian Lamble | 1992-12-15 |
| 4542213 | Triphenodioxazine acid dyes | Robert D. McClelland | 1985-09-17 |
| 4512773 | Cationic triphendioxazine dyes, methods for their manufacture and their use for dyeing cellulosic substrates | Kenneth Anderton, Nigel Hall, Brian Parton, Malcolm G. Shaw | 1985-04-23 |
| 4472575 | Triphendioxazine dyestuffs | — | 1984-09-18 |
| 4391754 | Anthraquinone compounds | — | 1983-07-05 |
| 4182720 | Process for the preparation of homogentisic lactone | Stephen B. Bostock | 1980-01-08 |