Average Co-Inventor Count = 10.91
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 Toatsu Chemicals, Incorporated (1 from 1,379 patents)
2. Mitsui Petrochemical Industries, Ltd. (1 from 1,008 patents)
2 patents:
1. 5192799 - Coumaran group containing amine compounds and their acid addition salts
2. 5008267 - Pyrimidinedione compounds, method of producing the same and