Average Co-Inventor Count = 2.67
ph-index = 3
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 Unicar Company Limited (3 from 39 patents)
2. Bridgestone Corporation (2 from 5,119 patents)
3. Union Carbide Corporation (1 from 2,921 patents)
4 patents:
1. 5137947 - Composition for water proof sheets
2. 5068270 - Composition for water proof sheets
3. 4499210 - Process and composition for producing open-cell cross linked polyolefin
4. 4424181 - Process and composition for producing open-cell cross linked polyolefin