Average Co-Inventor Count = 3.00
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 (2 from 6,896 patents)
2 patents:
1. 3978021 - Inhibiting ozone deterioration of rubbers
2. 3956234 - Inhibiting ozone deterioration of rubbers