Average Co-Inventor Count = 3.60
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. Man Ghh Schienenverkehrstechnik (2 from 7 patents)
2. Man Gutehoffnungshutte Aktiengesellschaft (1 from 67 patents)
3. Bremer Strassenbahn Ag (1 from 1 patent)
3 patents:
1. 5588368 - Secondary suspension for rail vehicles
2. 5377597 - Rail vehicle having articulated connection between vehicle bodies for
3. 4941409 - Wheel set guidance for trucks of rail vehicles, especially commuter