- 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 10/54 - Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
Patent holdings for IPC class E21B 10/54
Total number of patents in this class: 416
10-year publication summary
|
61
|
51
|
50
|
18
|
8
|
14
|
7
|
6
|
5
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Baker Hughes Incorporated | 5075 |
78 |
| Halliburton Energy Services, Inc. | 21151 |
58 |
| Baker Hughes Holdings LLC | 2979 |
58 |
| Smith International, Inc. | 701 |
50 |
| Baker Hughes, a GE Company, LLC | 2102 |
32 |
| US Synthetic Corporation | 616 |
17 |
| Schlumberger Technology Corporation | 11423 |
13 |
| Baker Hughes Oilfield Operations, LLC | 2427 |
12 |
| Diamond Innovations, Inc. | 234 |
9 |
| National Oilwell Varco, L.P. | 1701 |
4 |
| Boart Longyear Manufacturing and Distribution Inc. | 126 |
4 |
| Schlumberger Canada Limited | 7552 |
3 |
| Kondex Corporation | 82 |
3 |
| National Oilwell DHT, L.P. | 120 |
3 |
| NOV Downhole Eurasia Limited | 46 |
3 |
| Oerlikon Metco (US) Inc. | 216 |
3 |
| Ulterra Drilling Technologies, L.P. | 131 |
3 |
| Schlumberger Technology B.v. | 5265 |
2 |
| Black & Decker, Inc. | 2424 |
2 |
| China Petroleum & Chemical Corporation | 2018 |
2 |
| Other owners | 57 |