Average Co-Inventor Count = 11.00
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. Other (3 from 832,680 patents)
2. Tobishi Yakuhin Kogyo Kabushiki Kaisha (2 from 5 patents)
3 patents:
1. 5245034 - Compound having vessel smooth muscle relaxation activity
2. 5216150 - Derivatives of isoquinoline (and naphthalene) sulfonamides
3. 5081246 - Compound having vessel smooth muscle relaxation activity