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. Daicel Corporation (1 from 640 patents)
1 patent:
1. 4038449 - Polypropylene or polymethylpentene film coated with graft undercoat