Average Co-Inventor Count = 3.00
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. Japan Styrene Paper Corporation (2 from 48 patents)
2 patents:
1. 4674976 - Method for the preparation of a foamed article of a polyolefin resin
2. 4589845 - Apparatus for the preparation of a foamed article of a polyolefin resin