Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6271355 | Amine pyrazole nickel phthalocyanine dyes for coloration | Andrew H. M. Renfrew | 2001-08-07 |
| 5175261 | Azopyridone dyes | — | 1992-12-29 |
| 5171852 | Triphenodioxazine reactive dyes having sulphonate ester groups | Andrew H. M. Renfrew, Brian Lamble | 1992-12-15 |
| 5019134 | Reactive dyes | Peter J. Smith | 1991-05-28 |
| 4881943 | Disperse dyes: nitro-thiophene azo dyes for bright blue shades on polyester | David Brierley, Ronald W. Kenyon | 1989-11-21 |
| 4330468 | Water soluble monoazo dyes for nylon | David Brierley, Michael Yelland | 1982-05-18 |
| 4213759 | Coloration process: mixed dyes for differential-dyeing nylon mixtures | Charles W. Taylor | 1980-07-22 |