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 Petroleum Chemical Corporation (1 from 674 patents)
2. Sinopec Research Institute of Petroleum Engineering (1 from 10 patents)
3. Sinopec Petroleum Engineering Technology Research Institute Co., Ltd. (7 patents)
1 patent:
1. 10774257 - Random copolymer and preparation method thereof, and drilling fluid