Average Co-Inventor Count = 13.64
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. China University of Petroleum (4 from 25 patents)
2. Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. (1 from 161 patents)
5 patents:
1. 12012822 - Ultra-high power cementing apparatus integrated with remote control
2. 11922335 - Method and system for evaluating macro resilience of offshore oil well control equipment
3. 11346200 - Method and system for guaranteeing safety of offshore oil well control equipment
4. 11243509 - Method for assessing safety integrity level of offshore oil well control equipment
5. 10989019 - Fully-electrically driven downhole safety valve