Average Co-Inventor Count = 1.04
ph-index = 12
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. (16 from 572 patents)
2. Other (6 from 832,912 patents)
3. National Oilwell, Inc. (6 from 68 patents)
4. National-Ollwell (1 from 1 patent)
29 patents:
1. 10830007 - Tubular support and servicing systems
2. 10040103 - Thread cleaning device
3. 9752398 - Apparatus and method for servicing pipes
4. 9261232 - Centrifugal applicator
5. 9242303 - Cutting device on moveable platform
6. 9030324 - System and method for tracking pipe activity on a rig
7. 8747045 - Pipe stabilizer for pipe section guide system
8. 8585110 - Internal pipe gripping tool
9. 8550761 - Drill pipe handling and moving system
10. 8281867 - Pipe connection system
11. 8113762 - Horizontal pipe storage and handling system
12. 8109338 - Pipe section guide system with flexible member
13. 7963371 - Centrifugal applicator system
14. 7748297 - Cam operated jaw force intensifier for gripping a cylindrical member
15. 7736119 - Horizontal pipe handling system