Average Co-Inventor Count = 3.26
ph-index = 3
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. Abb Henschel Waggon Union Gmbh (2 from 7 patents)
4 patents:
1. 5479863 - Railroad freight car
2. 5351624 - Bogie for high-speed rail vehicles
3. 5024166 - Bogie for rail vehicles
4. 4569293 - Freight car construction