- All sections
- E - Fixed constructions
- E21B - Earth or rock drillingobtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B 10/60 - Drill bits characterised by conduits or nozzles for drilling fluids
Patent holdings for IPC class E21B 10/60
Total number of patents in this class: 489
10-year publication summary
|
51
|
35
|
36
|
41
|
47
|
30
|
32
|
25
|
17
|
19
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20908 |
39 |
| Baker Hughes Holdings LLC | 3005 |
25 |
| Baker Hughes Incorporated | 5238 |
23 |
| Ulterra Drilling Technologies, L.P. | 124 |
23 |
| Schlumberger Technology Corporation | 10745 |
22 |
| Saudi Arabian Oil Company | 13206 |
19 |
| Schlumberger Canada Limited | 7298 |
15 |
| Foro Energy, Inc. | 106 |
14 |
| Baker Hughes Oilfield Operations, LLC | 2313 |
14 |
| Schlumberger Technology B.v. | 5163 |
13 |
| Services Petroliers Schlumberger | 5788 |
13 |
| Smith International, Inc. | 717 |
9 |
| Optionx Holdings Pty Ltd | 11 |
8 |
| Boart Longyear Company | 158 |
7 |
| Boart Longyear Manufacturing and Distribution Inc. | 112 |
7 |
| China University of Petroleum (East China) | 377 |
6 |
| Shenzhen University | 1643 |
6 |
| Schlumberger Holdings Limited | 2819 |
5 |
| Aramco Services Company | 3981 |
5 |
| Barbco, Inc. | 13 |
5 |
| Other owners | 211 |