- 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 47/07 - Temperature
Patent holdings for IPC class E21B 47/07
Total number of patents in this class: 1074
10-year publication summary
|
32
|
42
|
98
|
113
|
169
|
132
|
115
|
97
|
86
|
43
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21292 |
170 |
| Saudi Arabian Oil Company | 14369 |
117 |
| Schlumberger Technology Corporation | 11940 |
94 |
| Schlumberger Canada Limited | 7610 |
33 |
| Ice Thermal Harvesting, LLC | 77 |
33 |
| Baker Hughes Oilfield Operations, LLC | 2555 |
28 |
| Services Petroliers Schlumberger | 6022 |
25 |
| Schlumberger Technology B.v. | 5287 |
24 |
| ConocoPhillips Company | 1714 |
22 |
| Baker Hughes Incorporated | 4883 |
18 |
| BJ Energy Solutions, LLC (formerly TES Asset Acquisition, LLC) | 234 |
18 |
| Landmark Graphics Corporation | 1492 |
17 |
| ExxonMobil Upstream Research Company | 2285 |
16 |
| Metrol Technology Limited | 90 |
9 |
| National Oilwell Varco, L.P. | 1700 |
9 |
| Baker Hughes, a GE Company, LLC | 2022 |
9 |
| Lytt Limited | 45 |
9 |
| King Fahd University of Petroleum and Minerals | 1601 |
8 |
| Chevron U.S.A. Inc. | 4170 |
7 |
| SunCor Energy Inc. | 731 |
7 |
| Other owners | 401 |