- 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 43/114 - Perforators using direct fluid action, e.g. abrasive jets
Patent holdings for IPC class E21B 43/114
Total number of patents in this class: 376
10-year publication summary
|
41
|
27
|
23
|
22
|
13
|
18
|
15
|
6
|
8
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20977 |
75 |
| Thru Tubing Solutions, Inc. | 379 |
47 |
| Schlumberger Technology Corporation | 10914 |
25 |
| Saudi Arabian Oil Company | 13428 |
20 |
| CURTIS, Philip, Anthony | 405 |
14 |
| TD Tools, Inc. | 14 |
11 |
| Hunting Titan, Inc. | 247 |
9 |
| Aramco Services Company | 4039 |
8 |
| Coiled Tubing Specialties, LLC | 31 |
8 |
| Schlumberger Canada Limited | 7373 |
7 |
| Baker Hughes Incorporated | 5243 |
7 |
| Schlumberger Technology B.v. | 5189 |
6 |
| Schlumberger Holdings Limited | 2800 |
6 |
| NCS Multistage Inc. | 178 |
6 |
| Prad Research and Development Limited | 2690 |
6 |
| Services Petroliers Schlumberger | 5835 |
6 |
| Pinnacle Oil Tools Inc. | 6 |
6 |
| China Petroleum & Chemical Corporation | 1913 |
5 |
| Robertson Intellectual Properties, LLC | 92 |
5 |
| Sinopec Southwest Oil & Gas Company | 24 |
5 |
| Other owners | 94 |