Average Co-Inventor Count = 3.00
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. Hochtief Aktiengesellschaft Vorm. Gebr.helfmann (1 from 27 patents)
1 patent:
1. 5052309 - Track carrier for a high speed magnetic levitation transport system