Average Co-Inventor Count = 2.40
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. Asahi Kasei Kogyo Kabushiki Kaisha (2 from 1,297 patents)
2 patents:
1. 4399035 - Polyvinylidene fluoride type resin hollow filament microfilter and
2. 4229297 - Method of separating oil from oil-containing liquid