- 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 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
|
12
|
12
|
8
|
11
|
14
|
13
|
11
|
11
|
13
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Impact Selector International, LLC | 117 |
12 |
| Thru Tubing Solutions, Inc. | 361 |
11 |
| Saudi Arabian Oil Company | 11322 |
10 |
| Halliburton Energy Services, Inc. | 20165 |
8 |
| Weatherford Technology Holdings, LLC | 2135 |
8 |
| Lee Oilfield Service Ltd. | 13 |
8 |
| Rotojar Innovations Limited | 29 |
6 |
| Ardyne Holdings Limited | 86 |
5 |
| National Oilwell Varco, L.P. | 1604 |
4 |
| Schlumberger Technology Corporation | 9690 |
3 |
| Smith International, Inc. | 761 |
3 |
| Tenax Energy Solutions, LLC | 21 |
3 |
| Baker Hughes Oilfield Operations, LLC | 1885 |
3 |
| Hydrashock, L.L.C. | 6 |
3 |
| Workover Solutions, Inc. | 34 |
3 |
| Aramco Services Company | 3504 |
2 |
| KLX Energy Services LLC | 75 |
2 |
| Optimum Petroleum Services Inc. | 8 |
2 |
| Innovex Downhole Solutions, Inc. | 182 |
2 |
| WENZEL Downhole Tools ULC | 16 |
2 |
| Other owners | 32 |