- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16J - Pistonscylinderspressure vessels in generalsealings
- F16J 15/46 - Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
Patent holdings for IPC class F16J 15/46
Total number of patents in this class: 230
10-year publication summary
|
16
|
18
|
19
|
23
|
21
|
12
|
13
|
10
|
8
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NOK Corporation | 2236 |
5 |
| ABB Oy | 158 |
4 |
| Caterpillar Propulsion Production AB | 15 |
4 |
| Tokamak Energy Ltd | 193 |
4 |
| Rtx Corporation | 9461 |
4 |
| General Electric Company | 13858 |
3 |
| Siemens AG | 24352 |
3 |
| Kabushiki Kaisha Riken | 292 |
3 |
| Outotec (Finland) Oy | 477 |
3 |
| Southwest Research Institute | 743 |
3 |
| TDW Delaware, Inc. | 170 |
3 |
| Technofast Industries Pty Ltd | 18 |
3 |
| Metso Finland Oy | 464 |
3 |
| Schlumberger Technology Corporation | 10898 |
2 |
| Schlumberger Canada Limited | 7369 |
2 |
| Halliburton Energy Services, Inc. | 20964 |
2 |
| Schaeffler Technologies AG & Co. KG | 10017 |
2 |
| A-lok Products, Incorporated | 9 |
2 |
| Andritz Oy | 287 |
2 |
| Emigal Electronic Test Solutions Ltd. | 2 |
2 |
| Other owners | 171 |