Average Co-Inventor Count = 4.29
ph-index = 1
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. Cassella Aktiengesellschaft (3 from 260 patents)
3 patents:
1. 5383961 - Water-soluble sulphur dyes, their preparation and use
2. 5374302 - Water-insoluble sulphur dyes, their preparation and use
3. 5368637 - Water-insoluble sulphur dyes, their preparation and use