Average Co-Inventor Count = 2.78
ph-index = 29
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. Varco I/p, Inc. (35 from 191 patents)
2. Other (26 from 832,880 patents)
3. Tuboscope I/p, Inc. (15 from 36 patents)
4. Weatherford/lamb, Inc. (13 from 1,209 patents)
5. National Oilwell Varco, L.p. (7 from 572 patents)
6. Weatherford U.s., Inc. (2 from 42 patents)
7. Go-whiz-it, Inc. (2 from 2 patents)
8. Advanced Wirecloth, Inc. (1 from 1 patent)
101 patents:
1. 9784041 - Drilling rig riser identification apparatus
2. 9023275 - Shale shakers and separators with real time monitoring of operation and screens, killing of living things in fluids, and heater apparatus for heating fluids
3. 8996382 - Lips blockers, headsets and systems
4. 8973656 - Wellbore operations, systems, and methods with McNano devices
5. 8911676 - Treatment systems for fluids
6. 8778264 - Fluid treatment systems
7. 8770292 - Heatable material for well operations
8. 8561805 - Automatic vibratory separator
9. 8556756 - Game apparatuses
10. 8181697 - Multi-function multi-hole drilling rig
11. 8176971 - Earth heat transfer loop apparatus
12. 8016037 - Drilling rigs with apparatus identification systems and methods
13. 7958715 - Chain with identification apparatus
14. 7946356 - Systems and methods for monitored drilling
15. 7918752 - Game apparatuses