- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16J - Pistons; cylinders; pressure vessels in general; sealings
- 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: 62
10-year publication summary
|
7
|
3
|
5
|
5
|
5
|
9
|
4
|
5
|
3
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MAHLE International GmbH | 2670 |
9 |
| Federal-Mogul Burscheid GmbH | 284 |
4 |
| Federal-Mogul Corporation | 362 |
3 |
| KS Kolbenschmidt GmbH | 164 |
3 |
| Montabert | 64 |
3 |
| AI Alpine US Bidco Inc. | 107 |
3 |
| Mainspring Energy, Inc. | 98 |
3 |
| Kabushiki Kaisha Riken | 265 |
2 |
| MAN Diesel & Turbo, Filial af MAN Diesel & Turbo SE, Tyskland | 40 |
2 |
| Materion Corporation | 293 |
2 |
| TPR Co., Ltd. | 141 |
2 |
| Tenneco Inc | 274 |
2 |
| Man Energy Solutions SE | 274 |
2 |
| General Electric Company | 18133 |
1 |
| Airbus S.A.S. | 819 |
1 |
| Hyundai Motor Company | 19021 |
1 |
| Hamilton Sundstrand Corporation | 4525 |
1 |
| Kia Motors Corporation | 7946 |
1 |
| ANDREAS STIHL AG & Co. KG | 818 |
1 |
| Asso Werke S.r.l. | 2 |
1 |
| Other owners | 15 |