Average Co-Inventor Count = 5.00
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. Qiqihar Railway Rolling Stock Co., Ltd. (1 from 14 patents)
2. Dalian Qiche Railway Rolling Stock Co., Ltd. (1 from 3 patents)
1 patent:
1. 8468954 - Side wall and boxcar of railway wagon