Average Co-Inventor Count = 3.20
ph-index = 2
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. Vetco Gray Inc. (2 from 452 patents)
2 patents:
1. 8997883 - Annulus seal with stepped energizing ring
2. 8950785 - Broach style anti rotation device for connectors