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. Tosoh Corporation (1 from 893 patents)
2. Nippon Polyurethane Industry Co., Ltd. (1 from 35 patents)
1 patent:
1. 5360871 - Vinyl chloride resin-based composition and packings made therefrom