Average Co-Inventor Count = 1.75
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 Norway As (6 from 50 patents)
2. National Oilwell Norway As (2 from 25 patents)
3. National Oilwell Varco, L.p. (572 patents)
8 patents:
1. 11492857 - Torque device for oil field use and method of operation for same
2. 10550651 - Torque device for oil field use and method of operation for same
3. 9752394 - Die holder device and method for utilizing the same
4. 9303468 - Drilling system and a device for assembling and disassembling pipe stands
5. 9145759 - Capture basket system for an underdeck pipehandling machine
6. 8777199 - Hydraulic clamping device
7. 8733435 - Collector device for drilling fluid
8. 8245773 - Centralizing device for an elongated body in a mouse hole machine