- 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 10/62 - Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
Patent holdings for IPC class E21B 10/62
Total number of patents in this class: 575
10-year publication summary
|
69
|
41
|
31
|
49
|
28
|
27
|
24
|
22
|
14
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20949 |
93 |
| Baker Hughes Incorporated | 5259 |
68 |
| Baker Hughes Holdings LLC | 3003 |
50 |
| Smith International, Inc. | 719 |
41 |
| US Synthetic Corporation | 617 |
32 |
| Schlumberger Technology Corporation | 10820 |
24 |
| Baker Hughes, a GE Company, LLC | 2110 |
21 |
| Schlumberger Canada Limited | 7350 |
17 |
| Schlumberger Technology B.v. | 5181 |
17 |
| Services Petroliers Schlumberger | 5817 |
17 |
| Schlumberger Holdings Limited | 2813 |
11 |
| CNPC USA Corp. | 158 |
8 |
| Prad Research and Development Limited | 2692 |
8 |
| Varel International Ind., L.P. | 69 |
8 |
| Beijing Huamei Inc. CNPC | 9 |
7 |
| The Charles Machine Works, Inc. | 407 |
6 |
| Sandvik Intellectual Property AB | 1479 |
5 |
| Saudi Arabian Oil Company | 13295 |
5 |
| Vermeer Manufacturing Company | 639 |
5 |
| Kennametal Inc. | 1390 |
4 |
| Other owners | 128 |