Average Co-Inventor Count = 5.00
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. Nippon Oil Company (1 from 690 patents)
2. Mitsubishi Metal Corporation (1 from 68 patents)
1 patent:
1. 4910257 - Polyethylene resin composition