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. Mitsui Petrochemical Industries, Ltd. (2 from 1,008 patents)
2 patents:
1. 5830981 - Process for producing polyethylene terephthalate
2. 4675373 - Polyhydroxy polyether, process for its production, and its use