Average Co-Inventor Count = 7.20
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. 11447165 - Train window structure and train with train window structure
2. 11186298 - Train window structure and train with train window structure