Average Co-Inventor Count = 5.29
ph-index = 3
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. Tianjin University (3 from 260 patents)
2. China Petrochemical Corporation (3 from 53 patents)
3 patents:
1. 5663456 - Method for obtaining large crystals with high purity by destructing part
2. 5648561 - Process for the production of high purity and ultrapure bisphenol-A
3. 5629457 - Dephenolizing process for production of high-quality polycarbonate grade