Average Co-Inventor Count = 8.00
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. Chugai Seiyaku Kabushiki Kaisha (2 from 947 patents)
2 patents:
1. 7074819 - Benzopyran or thiobenzopyran derivatives
2. 6645951 - Benzopyran or thiobenzopyran derivatives