Average Co-Inventor Count = 3.43
ph-index = 2
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 (4 from 6,662 patents)
4 patents:
1. 5321134 - Water-soluble phthalocyanine dyes, processes for their preparation and
2. 5302708 - Water-soluble phthalocyanine dyes
3. 5256776 - Water-soluble phthalocyanine dyestuffs, processes for their preparation
4. 5231172 - Fiber reactive dyes which contain a sulfonamido-triazinyl group and one