Average Co-Inventor Count = 7.30
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 Qingdao Sifang Co., Ltd. (3 from 92 patents)
3 patents:
1. 11021176 - Energy absorption device and rail vehicle having same
2. 10518789 - Coupling assembly and rail vehicle having same
3. 9889864 - Railway vehicle and head vehicle barrier-removing device thereof