Average Co-Inventor Count = 5.46
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. (1 from 92 patents)
2 patents:
1. D1076986 - Centrifugal compressor
2. 11916215 - Power supply battery and power supply system for high-speed maglev trains