Average Co-Inventor Count = 3.45
ph-index = 3
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 (2 from 6,662 patents)
2. Clariant Corporation (2 from 480 patents)
3. Hoecht Aktienge Sellschaft (1 from 1 patent)
5 patents:
1. 5948910 - Water-soluble perylene dyestuffs, their preparation and their use
2. 5882360 - Water-soluble copper phthalocyanine dyestuffs, their preparation and
3. 5783710 - Benzothioxanthene dyes, their preparation and their use
4. 5668260 - Tetrakisazo Compounds, the method of preparation thereof and the process
5. 5597387 - Water-soluble polyazo dyestuffs