Average Co-Inventor Count = 7.00
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 81 patents)
2. Cnpc Engineering Technology R&d Company Limited (1 from 20 patents)
1 patent:
1. 12146095 - pH-responsive nano-gel plugging material, and preparation method therefor and use thereof