- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16J - Pistonscylinderspressure vessels in generalsealings
- F16J 9/22 - Rings for preventing wear of grooves or like seatings
Patent holdings for IPC class F16J 9/22
Total number of patents in this class: 60
10-year publication summary
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3
|
5
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4
|
5
|
8
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5
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5
|
3
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1
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MAHLE International GmbH | 2810 |
9 |
| Federal-Mogul Burscheid GmbH | 283 |
4 |
| Mainspring Energy, Inc. | 114 |
4 |
| Federal-Mogul Corporation | 300 |
3 |
| KS Kolbenschmidt GmbH | 150 |
3 |
| Man Energy Solutions SE | 256 |
3 |
| AI Alpine US Bidco Inc. | 103 |
3 |
| Federal-Mogul Powertrain LLC | 266 |
2 |
| Kabushiki Kaisha Riken | 292 |
2 |
| MAN Diesel & Turbo, Filial af MAN Diesel & Turbo SE, Tyskland | 32 |
2 |
| Materion Corporation | 310 |
2 |
| Montabert | 59 |
2 |
| TPR Co., Ltd. | 163 |
2 |
| General Electric Company | 13856 |
1 |
| Airbus S.A.S. | 923 |
1 |
| Hyundai Motor Company | 22484 |
1 |
| Hamilton Sundstrand Corporation | 4932 |
1 |
| Kia Motors Corporation | 7749 |
1 |
| ANDREAS STIHL AG & Co. KG | 827 |
1 |
| Asso Werke S.r.l. | 2 |
1 |
| Other owners | 12 |