Average Co-Inventor Count = 2.67
ph-index = 2
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 Zeon Company, Ltd. (2 from 598 patents)
2 patents:
1. 5109082 - Process for producing cis-1,4-polybutadiene with gelation inhibited
2. 4384055 - Hard vinyl chloride resin composition for information signal recording