- 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: 105
10-year publication summary
|
8
|
10
|
10
|
9
|
6
|
8
|
5
|
4
|
10
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 13931 |
10 |
| Baker Hughes Oilfield Operations, LLC | 2427 |
9 |
| Schlumberger Technology Corporation | 11423 |
7 |
| Halliburton Energy Services, Inc. | 21151 |
7 |
| Baker Hughes Incorporated | 5075 |
6 |
| National Oilwell DHT, L.P. | 120 |
4 |
| Baker Hughes Holdings LLC | 2979 |
4 |
| Schlumberger Canada Limited | 7552 |
3 |
| Mincon International Limited | 56 |
3 |
| Ulterra Drilling Technologies, L.P. | 131 |
3 |
| Black Diamond Oilfield Rentals LLC | 67 |
3 |
| Schlumberger Technology B.v. | 5265 |
2 |
| Aramco Services Company | 4167 |
2 |
| NOV Downhole Eurasia Limited | 46 |
2 |
| Services Petroliers Schlumberger | 5969 |
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. | 12 |
2 |
| CFT Technologies Pty Ltd | 5 |
2 |
| Other owners | 28 |