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. Nippon Steel Chemical Co., Ltd. (2 from 173 patents)
2. Shinnikka Environmental Engineering Co., Ltd. (1 from 1 patent)
2 patents:
1. 4528304 - Polyamide resin composition
2. 4336129 - Method for treating a water-containing waste oil