Average Co-Inventor Count = 6.63
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. Cnpc USA Corporation (3 from 92 patents)
2. China National Petroleum Corporation (3 from 79 patents)
3. Beijing Huamei Inc. (3 from 47 patents)
3 patents:
1. 12391868 - Method for making nano- and micro-particles for use as a proppant and fluid-loss-control additive
2. 12351758 - Method of hydraulic fracturing utilizing a hydraulic fracturing fluid with a single phase liquid proppant
3. 12325824 - Composition and method for improving the production of petroleum hydrocarbons