- 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 10/64 - Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
Patent holdings for IPC class E21B 10/64
Total number of patents in this class: 74
10-year publication summary
|
12
|
4
|
6
|
1
|
4
|
5
|
3
|
5
|
6
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Baker Hughes Incorporated | 5273 |
8 |
| Halliburton Energy Services, Inc. | 20862 |
7 |
| Reflex Instruments Asia Pacific Pty Ltd | 86 |
5 |
| Sandvik Intellectual Property AB | 1484 |
4 |
| Mincon Nordic Oy | 14 |
4 |
| Huisman Well Technology | 3 |
3 |
| Schlumberger Technology Corporation | 10673 |
2 |
| Les Entreprises Parlec Ltee | 3 |
2 |
| Michels Corporation | 33 |
2 |
| Oy Atlas Copco Rotex Ab | 18 |
2 |
| Robit Rocktools Ltd | 4 |
2 |
| Saudi Arabian Oil Company | 12997 |
2 |
| Thru Tubing Solutions, Inc. | 377 |
2 |
| Welltec AS | 297 |
2 |
| Oy Epiroc Drilling Tools AB | 2 |
2 |
| Terraroc Finland Oy | 19 |
2 |
| MMC Ryotec Corporation | 30 |
2 |
| Schlumberger Holdings Limited | 2834 |
1 |
| JPMorgan Chase Bank, National Association | 8556 |
1 |
| Atlas Copco Drilling Solutions LLC | 15 |
1 |
| Other owners | 18 |