Average Co-Inventor Count = 4.44
ph-index = 1
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. Shionogi Company Limited (2 from 1,001 patents)
2. Yamaha Hatsudoki Kabushiki Kaisha (4,244 patents)
2 patents:
1. 5534654 - Aromatic-sulfonamide-type hydroxamic acid derivative
2. 5112944 - Cyclic tetrapeptide and process for preparing the same