- 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 23/06 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for setting packers
Patent holdings for IPC class E21B 23/06
Total number of patents in this class: 1671
10-year publication summary
|
148
|
121
|
142
|
136
|
139
|
147
|
161
|
117
|
94
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20403 |
361 |
| Baker Hughes Incorporated | 5514 |
114 |
| Schlumberger Technology Corporation | 10217 |
86 |
| Saudi Arabian Oil Company | 12390 |
86 |
| Weatherford Technology Holdings, LLC | 2107 |
75 |
| Baker Hughes Oilfield Operations, LLC | 2105 |
66 |
| Schlumberger Canada Limited | 7137 |
64 |
| Schlumberger Technology B.v. | 5058 |
52 |
| Services Petroliers Schlumberger | 5616 |
52 |
| Baker Hughes, a GE Company, LLC | 2138 |
49 |
| The Wellboss Company, LLC | 95 |
43 |
| Baker Hughes Holdings LLC | 3013 |
40 |
| G & H Diversified Manufacturing, LP, Edward Cannoy Kash, U.S. Citizen; Merry Janan Kash, U.S. Citizen | 65 |
18 |
| Schlumberger Holdings Limited | 2870 |
16 |
| Hunting Titan, Inc. | 244 |
16 |
| Prad Research and Development Limited | 2696 |
16 |
| Aramco Services Company | 3735 |
11 |
| Welltec AS | 297 |
11 |
| Exacta-Frac Energy Services, Inc. | 55 |
11 |
| Dbk Industries, LLC | 14 |
11 |
| Other owners | 473 |