Average Co-Inventor Count = 10.00
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. Heilongjiang Institute of Geological Sciences (1 from 1 patent)
1 patent:
1. 11156047 - Wire rope coring drilling rig and new green construction method capable of replacing trench and shallow-shaft explorations