Average Co-Inventor Count = 3.00
ph-index = 6
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. Ciba Specialty Chemicals Corporation (22 from 1,524 patents)
2. Ciba Corporation (6 from 31 patents)
3. Basf Se Ludwigshafen (1 from 24 patents)
4. Basf Se Corporation (5,663 patents)
29 patents:
1. 7931696 - Cationic dyes
2. 7828858 - Mixture of sulfide dyes
3. 7811335 - Styryl sulfide dyes
4. 7806940 - Cationic oligomeric azo dyes
5. 7803197 - Thiol derivative dyes
6. 7794509 - Tricationic dyes
7. 7785375 - Pyrido thiazinium dyes
8. 7771490 - Dyes containing a thiol group
9. 7704284 - Xanthene dyes
10. 7563289 - Thiol dyes
11. 7482438 - Cationic imidazolazo dyes containing a 2,5-diaminophenyl moiety
12. 7476260 - Disulfide dyes, composition comprising them and method of dyeing hair
13. 7307155 - Cationic direct dyes
14. 7258702 - Yellow cationic dyes for dyeing of organic material
15. 7232467 - Method of coloring porous material