Average Co-Inventor Count = 10.59
ph-index = 3
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. Shell Oil Comapny (3 from 7,646 patents)
3 patents:
1. 7108072 - Lubrication and self-cleaning system for expansion mandrel
2. 7048067 - Wellbore casing repair
3. 6557640 - Lubrication and self-cleaning system for expansion mandrel