Average Co-Inventor Count = 3.00
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. Shionogi Company Limited (2 from 1,001 patents)
2 patents:
1. 6479671 - Process for producing optically active chromene derivative
2. 5407929 - Triazolylthiomethylthio cephalosporin hydrochhloride, its crystalline