Average Co-Inventor Count = 5.43
ph-index = 4
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. (4 from 329 patents)
4 patents:
1. 6919372 - Sustained release pharmaceutical compositions
2. 6506407 - Colon-specific drug release system
3. 6368629 - Colon-specific drug release system
4. 6328979 - Sustained release medicinal compositions