- All sections
- E - Fixed constructions
- E21B - Earth or rock drilling; obtaining 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: 463
10-year publication summary
|
48
|
51
|
35
|
36
|
41
|
48
|
30
|
31
|
24
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20165 |
38 |
| Baker Hughes Holdings LLC | 3060 |
25 |
| Baker Hughes Incorporated | 5689 |
24 |
| Ulterra Drilling Technologies, L.P. | 124 |
19 |
| Saudi Arabian Oil Company | 11322 |
17 |
| Foro Energy, Inc. | 104 |
14 |
| Boart Longyear Company | 262 |
14 |
| Baker Hughes Oilfield Operations, LLC | 1885 |
13 |
| Schlumberger Technology Corporation | 9690 |
12 |
| Schlumberger Canada Limited | 6913 |
10 |
| Schlumberger Technology B.v. | 4951 |
9 |
| Smith International, Inc. | 761 |
9 |
| Services Petroliers Schlumberger | 5426 |
9 |
| Optionx Holdings Pty Ltd | 8 |
7 |
| Schlumberger Holdings Limited | 2947 |
6 |
| China University of Petroleum (East China) | 319 |
6 |
| National Oilwell DHT, L.P. | 159 |
6 |
| Shenzhen University | 1544 |
6 |
| Kamco North Holding Company Inc. | 6 |
6 |
| Aramco Services Company | 3504 |
5 |
| Other owners | 208 |