Average Co-Inventor Count = 8.47
ph-index = 2
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. Yamanouchi Pharmaceutical Company Ltd. (2 from 329 patents)
2 patents:
1. 6919372 - Sustained release pharmaceutical compositions
2. 6328979 - Sustained release medicinal compositions