Average Co-Inventor Count = 1.95
ph-index = 10
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. Hoechst Aktiengesellschaft (36 from 6,662 patents)
2. Cassella Aktiengesellschaft (2 from 260 patents)
3. Clariant Corporation (1 from 480 patents)
39 patents:
1. 6120704 - Mixtures of optical brighteners
2. 5904739 - Storage-stable liquid brightener formulations
3. 5389280 - Stable and homogeneous aqueous formulations of surfactants
4. 5230711 - Dyeing of cellulose with soluble sulphur dyes without reducing agent
5. 5131913 - Production of pattern effects when dyeing or printing textile material
6. 5006129 - Dyeing textile material with pigment dyes: pre-treatment with quaternary
7. 4814453 - Naphthalimides containing sulfuric acid ester groups, a process for
8. 4791205 - Bisbenzoxazolylnaphthalenes containing sulfonate or sulfonamide groups,
9. 4595756 - Cationic compounds of the naphthalimide series, process for their
10. 4508900 - Cationic compounds of the naphthalimide series, process for their
11. 4447350 - Mixtures of optical brighteners and their use
12. 4416795 - Mixtures of optical brighteners
13. 4400294 - Mixtures of optical brighteners
14. 4336155 - Mixtures of optical brighteners
15. 4330427 - Mixtures of optical brighteners