- 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: 61
10-year publication summary
|
3
|
5
|
5
|
5
|
9
|
5
|
5
|
3
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MAHLE International GmbH | 2737 |
9 |
| Federal-Mogul Burscheid GmbH | 283 |
4 |
| Federal-Mogul Corporation | 321 |
3 |
| KS Kolbenschmidt GmbH | 157 |
3 |
| Man Energy Solutions SE | 273 |
3 |
| AI Alpine US Bidco Inc. | 103 |
3 |
| Mainspring Energy, Inc. | 109 |
3 |
| Kabushiki Kaisha Riken | 282 |
2 |
| MAN Diesel & Turbo, Filial af MAN Diesel & Turbo SE, Tyskland | 39 |
2 |
| Materion Corporation | 305 |
2 |
| Montabert | 59 |
2 |
| TPR Co., Ltd. | 157 |
2 |
| Tenneco Inc | 286 |
2 |
| General Electric Company | 17062 |
1 |
| Airbus S.A.S. | 878 |
1 |
| Hyundai Motor Company | 21406 |
1 |
| Hamilton Sundstrand Corporation | 4823 |
1 |
| Kia Motors Corporation | 7764 |
1 |
| ANDREAS STIHL AG & Co. KG | 822 |
1 |
| Asso Werke S.r.l. | 2 |
1 |
| Other owners | 14 |