Average Co-Inventor Count = 17.99
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. Eisai Company, Limited (3 from 677 patents)
3 patents:
1. 5319139 - Naphthalene derivatives
2. 5262565 - Naphthalene derivatives
3. 5237091 - Naphthalene derivatives