Average Co-Inventor Count = 3.60
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. Bayer Aktiengesellschaft (3 from 12,170 patents)
3 patents:
1. 4689171 - Anthraquinone dyestuffs, their preparation and use and dichroic material
2. 4596666 - Aryl-mercapto anthraquinone dyestuffs, their preparation and use and
3. 4585574 - Anthraquinone dyestuffs, processes for their preparation, their use, and