- 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: 374
10-year publication summary
|
31
|
26
|
24
|
18
|
19
|
18
|
7
|
8
|
12
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21294 |
67 |
| Thru Tubing Solutions, Inc. | 403 |
44 |
| Schlumberger Technology Corporation | 11679 |
26 |
| Saudi Arabian Oil Company | 14110 |
26 |
| CURTIS, Philip, Anthony | 337 |
12 |
| Aramco Services Company | 4174 |
11 |
| TD Tools, Inc. | 14 |
11 |
| Coiled Tubing Specialties, LLC | 33 |
8 |
| Schlumberger Canada Limited | 7596 |
7 |
| Hunting Titan, Inc. | 234 |
7 |
| Schlumberger Technology B.v. | 5289 |
6 |
| Schlumberger Holdings Limited | 2709 |
6 |
| Baker Hughes Incorporated | 4960 |
6 |
| Prad Research and Development Limited | 2667 |
6 |
| Services Petroliers Schlumberger | 6009 |
6 |
| Pinnacle Oil Tools Inc. | 6 |
6 |
| China Petroleum & Chemical Corporation | 2136 |
5 |
| NCS Multistage Inc. | 172 |
5 |
| Robertson Intellectual Properties, LLC | 94 |
5 |
| Sinopec Southwest Oil & Gas Company | 27 |
5 |
| Other owners | 99 |