Average Co-Inventor Count = 12.94
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. Chugai Seiyaku Kabushiki Kaisha (5 from 947 patents)
2. Other (2 from 832,680 patents)
3. Sakai Toshiyuki (1 from 1 patent)
5 patents:
1. 9440922 - Tetracyclic compound
2. 9126931 - Tetracyclic compound
3. 8569378 - p27 protein inducer
4. 8278465 - Coumarin derivative having antitumor activity
5. 7897792 - Coumarin derivative having antitumor activity