- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F01M - Lubricating of machines or engines in general; lubricating internal-combustion engines; crankcase ventilating
- F01M 1/12 - Closed-circuit lubricating systems not provided for in groups
Patent holdings for IPC class F01M 1/12
Total number of patents in this class: 144
10-year publication summary
|
14
|
19
|
18
|
15
|
13
|
16
|
6
|
9
|
5
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 8674 |
11 |
| Honda Motor Co., Ltd. | 24537 |
10 |
| Toyota Motor Corporation | 28582 |
7 |
| Yamaha Motor Co., Ltd. | 2740 |
6 |
| Atlas Copco Airpower, naamloze vennootschap | 915 |
5 |
| RPM Industries, LLC | 65 |
5 |
| BJ Energy Solutions, LLC (formerly TES Asset Acquisition, LLC) | 196 |
5 |
| General Electric Company | 18133 |
4 |
| Ford Global Technologies, LLC | 19702 |
4 |
| Hyundai Motor Company | 19021 |
4 |
| Briggs & Stratton, LLC | 673 |
4 |
| Safran Aircraft Engines | 5739 |
3 |
| Vitesco Technologies GmbH | 2372 |
3 |
| GM Global Technology Operations LLC | 13620 |
2 |
| Denso Corporation | 23338 |
2 |
| Caterpillar Inc. | 8877 |
2 |
| Arctic Cat Inc. | 338 |
2 |
| AVL List GmbH | 1232 |
2 |
| Bell Helicopter Textron Inc. | 1122 |
2 |
| Castrol Limited | 520 |
2 |
| Other owners | 59 |