Average Co-Inventor Count = 8.00
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. Crrc Tangshan Co., Ltd. (2 from 24 patents)
2 patents:
1. 12233921 - Rail train
2. 11279383 - Sleeping car compartment and sleeping car