Average Co-Inventor Count = 9.00
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. General Machinery Plant of Liaohe Petroleum Exploration Bureau of Cnpc (1 from 1 patent)
1 patent:
1. 9027607 - Pre-sressed insulated tubing