Average Co-Inventor Count = 5.00
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. Tsinghua University (1 from 4,312 patents)
2. Chang Chun Petrochemical Co., Ltd. (1 from 106 patents)
3. Chang Chun Plastics Co., Ltd. (1 from 103 patents)
1 patent:
1. 10570254 - Preparation method of polyurethane resin