- 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: 1307
10-year publication summary
|
104
|
107
|
97
|
73
|
71
|
84
|
70
|
63
|
53
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21107 |
108 |
| Schlumberger Technology Corporation | 11266 |
78 |
| Saudi Arabian Oil Company | 13839 |
58 |
| Baker Hughes Holdings LLC | 2988 |
57 |
| Baker Hughes Incorporated | 5131 |
52 |
| Ardyne Holdings Limited | 93 |
51 |
| Weatherford Technology Holdings, LLC | 2032 |
43 |
| Schlumberger Canada Limited | 7487 |
40 |
| Baker Hughes Oilfield Operations, LLC | 2402 |
40 |
| Schlumberger Technology B.v. | 5242 |
37 |
| Services Petroliers Schlumberger | 5921 |
37 |
| Baker Hughes, a GE Company, LLC | 2101 |
34 |
| Welltec AS | 300 |
30 |
| Wellbore Integrity Solutions LLC | 99 |
29 |
| Robertson Intellectual Properties, LLC | 94 |
20 |
| ConocoPhillips Company | 1699 |
18 |
| Foro Energy, Inc. | 106 |
17 |
| Abrado, Inc. | 27 |
15 |
| Thru Tubing Solutions, Inc. | 382 |
13 |
| Altus Intervention (technologies) AS | 68 |
12 |
| Other owners | 518 |