- 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 47/013 - Devices specially adapted for supporting measuring instruments on drill bits
Patent holdings for IPC class E21B 47/013
Total number of patents in this class: 132
10-year publication summary
|
7
|
7
|
0
|
0
|
1
|
8
|
15
|
24
|
24
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20165 |
23 |
| Baker Hughes Incorporated | 5689 |
16 |
| Saudi Arabian Oil Company | 11322 |
13 |
| Schlumberger Technology Corporation | 9690 |
12 |
| Baker Hughes Oilfield Operations, LLC | 1885 |
8 |
| Schlumberger Canada Limited | 6913 |
6 |
| Schlumberger Technology B.v. | 4951 |
5 |
| Services Petroliers Schlumberger | 5426 |
5 |
| Element Six Limited | 123 |
3 |
| Merlin Technology, Inc. | 165 |
3 |
| Element Six (UK) Limited | 178 |
3 |
| Aramco Services Company | 3504 |
2 |
| Institute of Geology and Geophysics, Chinese Academy of Sciences | 276 |
2 |
| King Abdullah University of Science and Technology | 1703 |
2 |
| Nabors Drilling Technologies USA, Inc. | 533 |
2 |
| National Oilwell Varco, L.P. | 1604 |
2 |
| Petromac IP Limited | 30 |
2 |
| Sandvik Mining and Construction Oy | 703 |
2 |
| Sanvean Technologies LLC | 39 |
2 |
| Erdos Miller, Inc. | 35 |
2 |
| Other owners | 17 |