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 Limited (1 from 8 patents)
2. Hitachi Rail Sts S.p.a. (11 patents)
1 patent:
1. 11228225 - Electric motor assembly for railway drive