Average Co-Inventor Count = 1.71
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. National Oilwell Varco, L.p. (4 from 572 patents)
4 patents:
1. 11279601 - Hoisting and tensioning bearing saver
2. 10670112 - Deadline anchor pigtail clamp
3. 10047848 - Sheave with structured web
4. 8628054 - Support becket for rig operations