Average Co-Inventor Count = 2.82
ph-index = 4
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Imperial Chemical Industries Limited (9 from 3,840 patents)
2. Canon Kabushiki Kaisha (6 from 90,631 patents)
3. Zeneca Limited (1 from 854 patents)
16 patents:
1. 5359043 - Reactive dyes having a sulphonamido group
2. 5118737 - Water-soluble dye
3. 4799960 - Ink comprising water soluble triazine dye free from cellulose reactive
4. 4790879 - Water-soluble triazane dyestuffs free from cellulose reactive groups and
5. 4780532 - Water-soluble triazine dyestuffs free from cellulose reactive groups and
6. 4772323 - Ink comprising at least one water soluble-formazan dye, free from
7. 4758658 - Water-soluble formazan dye
8. 4746733 - Water-soluble triphendioxazine disazo dyes
9. 4738721 - Ink comprising a water-soluble triphendioxazine dye
10. 4735657 - Water-soluble dye in an ink
11. 4705528 - Water-soluble triazine black dyes from cellulose reactive groups and
12. 4703113 - Water-soluble triazine black dyes free from cellulose reactive groups
13. 4634555 - Water-soluble copper phthalocyanine dyes free from cellulose reactive
14. 4182720 - Process for the preparation of homogentisic lactone
15. 4147510 - Coloration process