- 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 47/098 - Locating or determining the position of objects in boreholes or wells; Identifying the free or blocked portions of pipes using impression packers, e.g. to detect recesses or perforations
Patent holdings for IPC class E21B 47/098
Total number of patents in this class: 18
10-year publication summary
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2
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0
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0
|
0
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3
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3
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0
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4
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4
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 12390 |
6 |
| Schlumberger Technology Corporation | 10217 |
3 |
| Exedra AS | 7 |
3 |
| Aker Solutions AS | 232 |
1 |
| Aramco Services Company | 3735 |
1 |
| FMC Technologies, Inc. | 584 |
1 |
| David, David | 1 |
1 |
| Raz, Eli | 1 |
1 |
| Rokk Energy Technologies Inc. | 3 |
1 |
| Other owners | 0 |