- 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: 474
10-year publication summary
|
51
|
35
|
36
|
41
|
48
|
30
|
32
|
25
|
17
|
13
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20788 |
39 |
| Baker Hughes Holdings LLC | 3006 |
25 |
| Baker Hughes Incorporated | 5279 |
23 |
| Ulterra Drilling Technologies, L.P. | 125 |
23 |
| Saudi Arabian Oil Company | 12911 |
19 |
| Schlumberger Technology Corporation | 10652 |
18 |
| Foro Energy, Inc. | 106 |
14 |
| Baker Hughes Oilfield Operations, LLC | 2283 |
13 |
| Schlumberger Canada Limited | 7266 |
12 |
| Schlumberger Technology B.v. | 5160 |
10 |
| Services Petroliers Schlumberger | 5771 |
10 |
| Smith International, Inc. | 720 |
9 |
| Optionx Holdings Pty Ltd | 9 |
8 |
| Boart Longyear Company | 154 |
7 |
| Boart Longyear Manufacturing and Distribution Inc. | 111 |
7 |
| China University of Petroleum (East China) | 370 |
6 |
| Shenzhen University | 1636 |
6 |
| Schlumberger Holdings Limited | 2839 |
5 |
| Aramco Services Company | 3927 |
5 |
| Barbco, Inc. | 13 |
5 |
| Other owners | 210 |