Average Co-Inventor Count = 7.20
ph-index = 2
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. Byd Company Limited (2 from 909 patents)
2 patents:
1. 8540601 - Hybrid power output system
2. 8474556 - Hybrid power output system