Average Co-Inventor Count = 5.05
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. Sumitomo Pharmaceuticals Company Limited (4 from 174 patents)
4 patents:
1. 6713477 - Hydroxamic acid derivatives
2. 6048854 - 2,3-diaminopropionic acid derivative
3. 5707994 - 2,3-diaminopropionic acid derivative
4. 5607948 - Dipiperidine derivatives