- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16J - Pistonscylinderspressure vessels in generalsealings
- F16J 9/00 - Piston-rings, seats thereforRing sealings of similar construction in general
Patent holdings for IPC class F16J 9/00
Total number of patents in this class: 162
10-year publication summary
|
10
|
13
|
5
|
6
|
10
|
4
|
9
|
3
|
6
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MAHLE International GmbH | 2919 |
15 |
| Federal-Mogul Burscheid GmbH | 277 |
10 |
| MAHLE Metal Leve S/A | 155 |
8 |
| Kabushiki Kaisha Riken | 306 |
5 |
| TPR Co., Ltd. | 171 |
4 |
| Federal-Mogul Nurnberg GmbH | 130 |
3 |
| Federal-Mogul Powertrain LLC | 274 |
3 |
| H.e.f. | 113 |
3 |
| Kalsi Engineering, Inc. | 52 |
3 |
| KS Kolbenschmidt GmbH | 133 |
3 |
| Baker Hughes Incorporated | 4903 |
2 |
| GM Global Technology Operations LLC | 16205 |
2 |
| Acd, LLC | 25 |
2 |
| Bando Kiko Co., Ltd. | 76 |
2 |
| Engineered Seal Products, Inc. | 10 |
2 |
| Kjellberg-stiftung | 73 |
2 |
| Materion Corporation | 323 |
2 |
| Tokusen Kogyo Co., Ltd. | 77 |
2 |
| WABCO GmbH | 456 |
2 |
| Tenneco Inc | 51 |
2 |
| Other owners | 85 |