- 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: 493
10-year publication summary
|
45
|
31
|
36
|
39
|
40
|
27
|
28
|
23
|
16
|
20
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20977 |
40 |
| Baker Hughes Holdings LLC | 2999 |
25 |
| Baker Hughes Incorporated | 5243 |
23 |
| Ulterra Drilling Technologies, L.P. | 124 |
23 |
| Schlumberger Technology Corporation | 10914 |
22 |
| Saudi Arabian Oil Company | 13428 |
19 |
| Schlumberger Canada Limited | 7373 |
15 |
| Foro Energy, Inc. | 106 |
14 |
| Schlumberger Technology B.v. | 5189 |
13 |
| Services Petroliers Schlumberger | 5835 |
13 |
| Baker Hughes Oilfield Operations, LLC | 2334 |
13 |
| Smith International, Inc. | 716 |
9 |
| Optionx Holdings Pty Ltd | 11 |
8 |
| Boart Longyear Manufacturing and Distribution Inc. | 110 |
7 |
| China University of Petroleum (East China) | 383 |
6 |
| Shenzhen University | 1652 |
6 |
| Kamco North Holding Company Inc. | 6 |
6 |
| Boart Longyear Company | 156 |
6 |
| Schlumberger Holdings Limited | 2800 |
5 |
| Aramco Services Company | 4039 |
5 |
| Other owners | 215 |