Average Co-Inventor Count = 4.00
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. Nissan Chemical Industries Limited (1 from 1,235 patents)
2. Zeria Pharmaceutical Co., Ltd. (1 from 45 patents)
1 patent:
1. 4983593 - Pharmaceutical composition of dihydropyridine compound