Average Co-Inventor Count = 6.87
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. (2 from 92 patents)
2 patents:
1. 12168465 - Gearbox for rail vehicle, bogie for rail vehicle and rail vehicle
2. 10507847 - Central traction device for straddling monorail train