Average Co-Inventor Count = 4.31
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. Sumitomo Pharmaceuticals Company Limited (6 from 174 patents)
2. Other (1 from 832,680 patents)
3. Masahiko Yamamoto (1 from 1 patent)
6 patents:
1. 6939887 - Benzimidazolidinone derivatives
2. 6576656 - Oxindole derivative
3. 6048854 - 2,3-diaminopropionic acid derivative
4. 5759991 - Neurotrophic peptide derivatives
5. 5707994 - 2,3-diaminopropionic acid derivative
6. 5607948 - Dipiperidine derivatives