- 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 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: 389
10-year publication summary
|
45
|
46
|
31
|
26
|
24
|
18
|
19
|
18
|
7
|
6
|
| 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 |
81 |
| Thru Tubing Solutions, Inc. | 361 |
45 |
| Schlumberger Technology Corporation | 9690 |
23 |
| Saudi Arabian Oil Company | 11322 |
20 |
| CURTIS, Philip, Anthony | 497 |
16 |
| TD Tools, Inc. | 14 |
11 |
| Hunting Titan, Inc. | 240 |
10 |
| Baker Hughes Incorporated | 5689 |
9 |
| Schlumberger Canada Limited | 6913 |
8 |
| Aramco Services Company | 3504 |
8 |
| Coiled Tubing Specialties, LLC | 31 |
8 |
| Schlumberger Technology B.v. | 4951 |
6 |
| Schlumberger Holdings Limited | 2947 |
6 |
| NCS Multistage Inc. | 172 |
6 |
| Prad Research and Development Limited | 2696 |
6 |
| Services Petroliers Schlumberger | 5426 |
6 |
| Pinnacle Oil Tools Inc. | 6 |
6 |
| China Petroleum & Chemical Corporation | 1623 |
5 |
| Robertson Intellectual Properties, LLC | 88 |
5 |
| Sinopec Southwest Oil & Gas Company | 20 |
5 |
| Other owners | 99 |