- 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 47/07 - Temperature
Patent holdings for IPC class E21B 47/07
Total number of patents in this class: 818
10-year publication summary
24
|
29
|
31
|
42
|
97
|
110
|
166
|
127
|
103
|
23
|
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 |
138 |
Saudi Arabian Oil Company | 11322 |
90 |
Schlumberger Technology Corporation | 9690 |
59 |
Ice Thermal Harvesting, LLC | 68 |
27 |
Baker Hughes Incorporated | 5689 |
18 |
ConocoPhillips Company | 1657 |
18 |
Baker Hughes Oilfield Operations, LLC | 1885 |
18 |
Schlumberger Canada Limited | 6913 |
17 |
Landmark Graphics Corporation | 1526 |
17 |
ExxonMobil Upstream Research Company | 2525 |
16 |
Schlumberger Technology B.v. | 4951 |
14 |
Services Petroliers Schlumberger | 5426 |
14 |
BJ Energy Solutions, LLC (formerly TES Asset Acquisition, LLC) | 196 |
14 |
Baker Hughes, a GE Company, LLC | 2171 |
9 |
Lytt Limited | 51 |
9 |
King Fahd University of Petroleum and Minerals | 779 |
8 |
Metrol Technology Limited | 85 |
8 |
National Oilwell Varco, L.P. | 1604 |
8 |
SunCor Energy Inc. | 838 |
7 |
Baker Hughes Holdings LLC | 3060 |
7 |
Other owners | 302 |