Average Co-Inventor Count = 21.01
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 University of Petroleum (1 from 406 patents)
2. Cnpc Engineering Technology R&d Company Limited (1 from 19 patents)
3. Cnpc Chuanqing Drilling Engineering Company Limited (1 from 7 patents)
1 patent:
1. 11686190 - 4D quantitative and intelligent diagnosis method and system for spatio-temporal evolution of oil-gas reservoir damage types and extent