Average Co-Inventor Count = 2.00
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. Alstom (2 from 192 patents)
2 patents:
1. 6846209 - Propulsion unit
2. 6582257 - Propulsion unit