Average Co-Inventor Count = 1.14
ph-index = 4
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. Maschinenfabrik Augsburg-nurnberg Aktiengesellschaft (3 from 177 patents)
2. Man Gutehoffnungshutte (1 from 37 patents)
4 patents:
1. 4867072 - Multi-unit rail vehicle for commuter traffic
2. 4318345 - Railway vestibule connection
3. 4241665 - Articulated railway car connecting passage
4. 4175495 - Entrance step arrangement for a short distance transport vehicle