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. Hitachi Rail Sts S.p.a. (1 from 11 patents)
1 patent:
1. 11420660 - Luminous device for rail ways signals and the like, and management method thereof