Average Co-Inventor Count = 7.00
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. Cnpc USA Corporation (3 from 92 patents)
2. Beijing Huamei Inc. (3 from 47 patents)
3. China National Petroleum Corporation (2 from 79 patents)
3 patents:
1. 12391868 - Method for making nano- and micro-particles for use as a proppant and fluid-loss-control additive
2. 12241022 - Method for making nano- and micro-particles for use as a proppant and fluid-loss-control additive
3. 11459502 - Method for making nano- and micro-particles for use as a proppant and fluid-loss-control additive