Average Co-Inventor Count = 7.00
ph-index = 1
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. Sumitomo Chemical Company, Limited (1 from 6,893 patents)
2. Nippon Steel Chemical Co., Ltd. (1 from 173 patents)
1 patent:
1. 4499238 - Thermoplastic resin products having pearl-like luster