Average Co-Inventor Count = 1.00
ph-index = NA
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. Sichuan University (1 from 235 patents)
2. Research Institute of Petroleum Exploration & Development, Petrochina Company Limited (1 from 6 patents)
1 patent:
1. 12474304 - Seepage and acoustic wave coupling system for rock tensile testing