- 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 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
Patent holdings for IPC class E21B 44/00
Total number of patents in this class: 4494
10-year publication summary
422
|
395
|
311
|
326
|
339
|
328
|
262
|
213
|
202
|
89
|
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 |
610 |
Schlumberger Technology Corporation | 9690 |
472 |
Schlumberger Canada Limited | 6913 |
325 |
Services Petroliers Schlumberger | 5426 |
265 |
Landmark Graphics Corporation | 1526 |
216 |
Schlumberger Technology B.v. | 4951 |
186 |
Saudi Arabian Oil Company | 11322 |
181 |
Baker Hughes Incorporated | 5689 |
108 |
Prad Research and Development Limited | 2696 |
93 |
Nabors Drilling Technologies USA, Inc. | 533 |
92 |
Baker Hughes, a GE Company, LLC | 2171 |
92 |
Schlumberger Holdings Limited | 2947 |
78 |
National Oilwell Varco, L.P. | 1604 |
65 |
Geoquest Systems B.V. | 584 |
63 |
Sandvik Mining and Construction Oy | 703 |
59 |
Weatherford Technology Holdings, LLC | 2135 |
49 |
Evolution Engineering Inc. | 313 |
49 |
Aramco Services Company | 3504 |
44 |
Motive Drilling Technologies, Inc. | 89 |
41 |
Epiroc Rock Drills Aktiebolag | 405 |
32 |
Other owners | 1374 |