Average Co-Inventor Count = 3.00
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. Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. (1 from 163 patents)
1 patent:
1. 12395110 - Multi-winding-motor driving system, variable-frequency electric driving system, pumping system, fracturing device and wellsite equipment