Average Co-Inventor Count = 6.00
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 Bakelite Company Limited (1 from 612 patents)
1 patent:
1. 4431478 - Etching agent for polyimide type resins and process for etching