Average Co-Inventor Count = 9.00
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. China National Petroleum Corporation (1 from 79 patents)
2. Cnpc Chuanqing Drilling Engineering Company Limited (1 from 7 patents)
1 patent:
1. 12199448 - System and method for dynamically adjusting coupling coefficients of non-contact transmission magnetic mechanism