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 (1 from 92 patents)
2. China National Petroleum Corporation (1 from 79 patents)
3. Beijing Huamei Inc. (1 from 47 patents)
1 patent:
1. 10907416 - Polycrystalline diamond cutter with improved geometry for cooling and cutting evacuation and efficiency and durability