Average Co-Inventor Count = 3.75
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. Basf Aktiengesellschaft (2 from 10,754 patents)
2 patents:
1. 4052159 - Dyeing process using quaternary ammonium salt as retarder
2. 3945794 - Production of level dyeings on acrylonitrile polymer fibers with basic