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. Perpetuum Ltd (1 from 21 patents)
2. Hitachi Rail Limited (1 from 8 patents)
2 patents:
1. 11697442 - Monitoring an axle of a railway vehicle
2. 10336348 - Bracket