- 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 31/113 - Fishing for or freeing objects in boreholes or wells using impact means for releasing stuck parts, e.g. jars hydraulically operated
Patent holdings for IPC class E21B 31/113
Total number of patents in this class: 132
10-year publication summary
|
7
|
10
|
13
|
13
|
10
|
10
|
11
|
3
|
6
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Impact Selector International, LLC | 103 |
12 |
| Saudi Arabian Oil Company | 13865 |
11 |
| Thru Tubing Solutions, Inc. | 385 |
11 |
| Weatherford Technology Holdings, LLC | 2034 |
10 |
| Halliburton Energy Services, Inc. | 21115 |
8 |
| Lee Oilfield Service Ltd. | 13 |
8 |
| Rotojar Innovations Limited | 28 |
6 |
| National Oilwell Varco, L.P. | 1702 |
5 |
| Hydrashock, L.L.C. | 7 |
4 |
| Ardyne Holdings Limited | 93 |
4 |
| Tenax Energy Systems, LLC | 21 |
4 |
| Smith International, Inc. | 703 |
3 |
| Optimum Petroleum Services Inc. | 8 |
3 |
| Baker Hughes Oilfield Operations, LLC | 2414 |
3 |
| Workover Solutions, Inc. | 54 |
3 |
| Schlumberger Technology Corporation | 11298 |
2 |
| Aramco Services Company | 4156 |
2 |
| KLX Energy Services LLC | 71 |
2 |
| WENZEL Downhole Tools ULC | 12 |
2 |
| Schlumberger Canada Limited | 7497 |
1 |
| Other owners | 28 |