Average Co-Inventor Count = 5.00
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. Tsumura Co., Ltd. (1 from 60 patents)
2. Tsumura Juntendo, Inc. (1 from 5 patents)
2 patents:
1. 5234951 - Anti-ulcer agent comprising chalcone derivative
2. 5106871 - Anti-ulcer agent comprising chalcone derivative as effective ingredient