- 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 10/00 - Drill bits
Patent holdings for IPC class E21B 10/00
Total number of patents in this class: 596
10-year publication summary
|
59
|
42
|
14
|
24
|
24
|
16
|
10
|
10
|
5
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21320 |
96 |
| Baker Hughes Holdings LLC | 3023 |
63 |
| Baker Hughes Incorporated | 4940 |
35 |
| Schlumberger Technology Corporation | 11798 |
29 |
| Schlumberger Canada Limited | 7606 |
20 |
| SDG, LLC | 53 |
20 |
| Smith International, Inc. | 695 |
18 |
| Schlumberger Technology B.v. | 5298 |
16 |
| Services Petroliers Schlumberger | 6024 |
16 |
| Baker Hughes, a GE Company, LLC | 2057 |
16 |
| Chevron U.S.A. Inc. | 4134 |
15 |
| Saudi Arabian Oil Company | 14207 |
12 |
| US Synthetic Corporation | 621 |
10 |
| Schlumberger Holdings Limited | 2702 |
8 |
| Kennametal Inc. | 1356 |
7 |
| Element Six Abrasives S.A. | 145 |
7 |
| Prad Research and Development Limited | 2662 |
7 |
| Sandvik Intellectual Property AB | 1398 |
7 |
| Diamond Innovations, Inc. | 235 |
6 |
| Element Six Limited | 119 |
6 |
| Other owners | 182 |