Average Co-Inventor Count = 6.67
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. Sichuan Honghua Petroleum Equipment Co., Ltd. (3 from 9 patents)
3 patents:
1. 11603720 - Methods for tripping a drilling rig or a workover rig
2. 11299942 - Drilling machines and methods thereof
3. 11286731 - Pipe racking system