- 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 29/00 - Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
Patent holdings for IPC class E21B 29/00
Total number of patents in this class: 1211
10-year publication summary
|
83
|
130
|
125
|
124
|
117
|
82
|
75
|
89
|
75
|
16
|
| 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 |
97 |
| Baker Hughes Incorporated | 5689 |
60 |
| Schlumberger Technology Corporation | 9690 |
59 |
| Baker Hughes Holdings LLC | 3060 |
59 |
| Weatherford Technology Holdings, LLC | 2135 |
50 |
| Ardyne Holdings Limited | 86 |
48 |
| Saudi Arabian Oil Company | 11322 |
38 |
| Baker Hughes Oilfield Operations, LLC | 1885 |
35 |
| Baker Hughes, a GE Company, LLC | 2171 |
34 |
| Schlumberger Canada Limited | 6913 |
33 |
| Wellbore Integrity Solutions LLC | 68 |
31 |
| Schlumberger Technology B.v. | 4951 |
29 |
| Services Petroliers Schlumberger | 5426 |
29 |
| Welltec AS | 301 |
25 |
| Robertson Intellectual Properties, LLC | 88 |
20 |
| ConocoPhillips Company | 1657 |
17 |
| Foro Energy, Inc. | 104 |
17 |
| Abrado, Inc. | 35 |
15 |
| Thru Tubing Solutions, Inc. | 361 |
13 |
| Altus Intervention (technologies) AS | 60 |
11 |
| Other owners | 491 |