Average Co-Inventor Count = 10.94
ph-index = 3
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. Astellas Pharma Gmbh (3 from 416 patents)
2. Wakunaga Pharmaceutical Co., Ltd. (3 from 30 patents)
3 patents:
1. 7192943 - Cephem compounds
2. 7179801 - Cephem compounds
3. 7129232 - Cephem compounds