Average Co-Inventor Count = 5.09
ph-index = 2
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. Waggon Union Gmbh (2 from 12 patents)
2 patents:
1. 4569293 - Freight car construction
2. 4278030 - Truck for high speed rail cars