- 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 10/61 - Drill bits characterised by conduits or nozzles for drilling fluids characterised by nozzle structure
Patent holdings for IPC class E21B 10/61
Total number of patents in this class: 106
10-year publication summary
|
6
|
8
|
10
|
10
|
9
|
6
|
8
|
5
|
4
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 13512 |
10 |
| Baker Hughes Oilfield Operations, LLC | 2360 |
9 |
| Schlumberger Technology Corporation | 10957 |
7 |
| Halliburton Energy Services, Inc. | 21020 |
7 |
| Baker Hughes Incorporated | 5233 |
6 |
| National Oilwell DHT, L.P. | 123 |
4 |
| Baker Hughes Holdings LLC | 3010 |
4 |
| Schlumberger Canada Limited | 7403 |
3 |
| Mincon International Limited | 55 |
3 |
| Ulterra Drilling Technologies, L.P. | 124 |
3 |
| Black Diamond Oilfield Rentals LLC | 67 |
3 |
| Schlumberger Technology B.v. | 5203 |
2 |
| Aramco Services Company | 4058 |
2 |
| NOV Downhole Eurasia Limited | 46 |
2 |
| Services Petroliers Schlumberger | 5852 |
2 |
| Hard Rock Horizontal Directional Drilling Products, Inc. | 6 |
2 |
| Oy Epiroc Drilling Tools AB | 2 |
2 |
| Klear Drilling Technologies LP | 3 |
2 |
| NTS Amega West USA, Inc. | 10 |
2 |
| CFT Technologies Pty Ltd | 5 |
2 |
| Other owners | 29 |