- 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 10/46 - Drill bits characterised by wear resisting parts, e.g. diamond inserts
Patent holdings for IPC class E21B 10/46
Total number of patents in this class: 780
10-year publication summary
|
102
|
92
|
53
|
51
|
44
|
34
|
23
|
21
|
13
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Baker Hughes Incorporated | 5689 |
125 |
| Smith International, Inc. | 761 |
102 |
| Baker Hughes Holdings LLC | 3060 |
96 |
| Halliburton Energy Services, Inc. | 20165 |
76 |
| US Synthetic Corporation | 601 |
75 |
| Schlumberger Technology Corporation | 9690 |
18 |
| Kennametal Inc. | 1380 |
15 |
| National Oilwell DHT, L.P. | 159 |
14 |
| Mitsubishi Materials Corporation | 2378 |
12 |
| Varel International Ind., L.P. | 73 |
11 |
| Diamond Innovations, Inc. | 241 |
10 |
| Element Six Limited | 123 |
10 |
| Saudi Arabian Oil Company | 11322 |
9 |
| Element Six Abrasives S.A. | 148 |
8 |
| National Oilwell Varco, L.P. | 1604 |
8 |
| Sandvik Intellectual Property AB | 1634 |
8 |
| Ulterra Drilling Technologies, L.P. | 124 |
7 |
| Longyear TM, Inc. | 139 |
6 |
| Element Six GmbH | 99 |
5 |
| Element Six (production) (Pty) Ltd | 80 |
5 |
| Other owners | 160 |