Average Co-Inventor Count = 3.00
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. Eisai Company, Limited (1 from 677 patents)
1 patent:
1. 5615007 - Method of detecting crack and chip in flange of syringe