Average Co-Inventor Count = 7.22
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. 10507847 - Central traction device for straddling monorail train
2. 10196075 - Railway vehicle and axle box structure thereof
3. 9744976 - Railway vehicle and axle box structure thereof