- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F02F - Cylinders, pistons, or casings for combustion enginesarrangements of sealings in combustion engines
- F02F 11/00 - Arrangements of sealings in combustion engines
Patent holdings for IPC class F02F 11/00
Total number of patents in this class: 491
10-year publication summary
|
58
|
42
|
35
|
27
|
30
|
31
|
25
|
14
|
22
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NOK Corporation | 2238 |
49 |
| Ford Global Technologies, LLC | 20949 |
28 |
| Caterpillar Inc. | 9852 |
22 |
| Federal-Mogul Corporation | 289 |
21 |
| Honda Motor Co., Ltd. | 25784 |
18 |
| Nippon Gasket Co., Ltd. | 25 |
17 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12657 |
14 |
| Cummins Inc. | 2632 |
13 |
| Dana Automotive Systems Group, LLC | 447 |
12 |
| Pratt & Whitney Canada Corp. | 4958 |
11 |
| Nichias Corporation | 396 |
11 |
| Ishikawa Gasket Co., Ltd. | 26 |
10 |
| Reinz-Dichtungs-GmbH | 282 |
8 |
| Toyota Motor Corporation | 33519 |
7 |
| GM Global Technology Operations LLC | 15401 |
7 |
| Federal-Mogul Powertrain LLC | 267 |
7 |
| Freudenberg-NOK General Partnership | 160 |
6 |
| Nippon Leakless Industry Co., Ltd. | 9 |
6 |
| ElringKlinger AG | 550 |
5 |
| Federal-Mogul Sealing Systems GmbH | 64 |
5 |
| Other owners | 214 |