Average Co-Inventor Count = 4.00
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. Nippon Shinyaku Company, Ltd. (2 from 229 patents)
2 patents:
1. 4769183 - Stabilization of azulene derivatives
2. 4533552 - Stabilization of azulene derivatives