- 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 29/00 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground
Patent holdings for IPC class E21B 29/00
Total number of patents in this class: 1323
10-year publication summary
|
125
|
125
|
117
|
82
|
76
|
92
|
81
|
70
|
54
|
37
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21309 |
111 |
| Schlumberger Technology Corporation | 11879 |
81 |
| Weatherford Technology Holdings, LLC | 2162 |
65 |
| Saudi Arabian Oil Company | 14305 |
58 |
| Baker Hughes Holdings LLC | 3020 |
56 |
| Baker Hughes Incorporated | 4905 |
49 |
| Baker Hughes Oilfield Operations, LLC | 2543 |
44 |
| Schlumberger Canada Limited | 7620 |
40 |
| Schlumberger Technology B.v. | 5299 |
37 |
| Services Petroliers Schlumberger | 6033 |
37 |
| Baker Hughes, a GE Company, LLC | 2051 |
34 |
| Welltec AS | 319 |
32 |
| Wellbore Integrity Solutions LLC | 106 |
32 |
| Ardyne Holdings Limited | 60 |
28 |
| Robertson Intellectual Properties, LLC | 94 |
20 |
| ConocoPhillips Company | 1712 |
18 |
| Foro Energy, Inc. | 106 |
17 |
| Abrado, Inc. | 26 |
14 |
| Thru Tubing Solutions, Inc. | 405 |
12 |
| Archer Oiltools AS | 46 |
12 |
| Other owners | 526 |