Average Co-Inventor Count = 3.20
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. Chevron U.s.a. Inc. (2 from 2,449 patents)
2 patents:
1. 12221860 - Wellhead bracing system
2. 11060390 - Mitigation of frictional heat checking in well casing