- 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: 372
10-year publication summary
|
31
|
26
|
24
|
18
|
19
|
18
|
7
|
8
|
12
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21230 |
68 |
| Thru Tubing Solutions, Inc. | 394 |
44 |
| Saudi Arabian Oil Company | 13948 |
26 |
| Schlumberger Technology Corporation | 11522 |
25 |
| CURTIS, Philip, Anthony | 348 |
12 |
| Aramco Services Company | 4162 |
11 |
| TD Tools, Inc. | 14 |
11 |
| Coiled Tubing Specialties, LLC | 31 |
8 |
| Schlumberger Canada Limited | 7564 |
7 |
| Hunting Titan, Inc. | 234 |
7 |
| Schlumberger Technology B.v. | 5269 |
6 |
| Schlumberger Holdings Limited | 2733 |
6 |
| Baker Hughes Incorporated | 5038 |
6 |
| Prad Research and Development Limited | 2679 |
6 |
| Services Petroliers Schlumberger | 5979 |
6 |
| Pinnacle Oil Tools Inc. | 6 |
6 |
| China Petroleum & Chemical Corporation | 2064 |
5 |
| NCS Multistage Inc. | 173 |
5 |
| Robertson Intellectual Properties, LLC | 94 |
5 |
| Sinopec Southwest Oil & Gas Company | 27 |
5 |
| Other owners | 97 |