Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5118737 | Water-soluble dye | Stephen B. Bostock, David Greenwood | 1992-06-02 |
| 4799960 | Ink comprising water soluble triazine dye free from cellulose reactive groups | Stephen B. Bostock, David Greenwood | 1989-01-24 |
| 4790879 | Water-soluble triazane dyestuffs free from cellulose reactive groups and suitable for use in inks | Stephen B. Bostock, David Greenwood | 1988-12-13 |
| 4780532 | Water-soluble triazine dyestuffs free from cellulose reactive groups and suitable for use in inks | Stephen B. Bostock, David Greenwood | 1988-10-25 |
| 4772323 | Ink comprising at least one water soluble-formazan dye, free from cellulose-reactive groups | Stephen B. Bostock, David Greenwood | 1988-09-20 |
| 4758658 | Water-soluble formazan dye | Stephen B. Bostock, David Greenwood | 1988-07-19 |
| 4746733 | Water-soluble triphendioxazine disazo dyes | Stephen B. Bostock, David Greenwood | 1988-05-24 |
| 4738721 | Ink comprising a water-soluble triphendioxazine dye | Stephen B. Bostock, David Greenwood | 1988-04-19 |
| 4735657 | Water-soluble dye in an ink | Stephen B. Bostock, David Greenwood | 1988-04-05 |
| 4705528 | Water-soluble triazine black dyes from cellulose reactive groups and suitable for use in inks | Stephen B. Bostock, David Greenwood | 1987-11-10 |
| 4703113 | Water-soluble triazine black dyes free from cellulose reactive groups and suitable for use in inks | Stephen B. Bostock, David Greenwood | 1987-10-27 |
| 4634555 | Water-soluble copper phthalocyanine dyes free from cellulose reactive groups | Stephen B. Bostock, David Greenwood | 1987-01-06 |