Average Co-Inventor Count = 4.89
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. (6 from 92 patents)
6 patents:
1. 11738782 - Activation control method and apparatus for railway train
2. 11247704 - Activation apparatus of railway vehicle and railway vehicle having activation apparatus
3. 11125006 - Method, system and device for controlling door of railway vehicle
4. 10464524 - Alarming and unlocking device
5. 10207725 - Method and device for transmitting signal among compartments of train
6. 9682714 - Switching circuit for implementing coupling at random end of train