Average Co-Inventor Count = 5.46
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. Zeria Pharmaceutical Co., Ltd. (2 from 45 patents)
2 patents:
1. 5574054 - Quaternary ammonium salts and use thereof as medicine
2. 5380748 - Trialkylamine derivative and ameliorant for digestive tract movement