- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01M - Lubricating of machines or engines in generallubricating internal-combustion enginescrankcase ventilating
- F01M 13/04 - Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
Patent holdings for IPC class F01M 13/04
Total number of patents in this class: 1024
10-year publication summary
|
119
|
93
|
114
|
103
|
105
|
74
|
61
|
41
|
59
|
25
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cummins Filtration IP, Inc. | 808 |
83 |
| Honda Motor Co., Ltd. | 25150 |
35 |
| MAHLE International GmbH | 2759 |
28 |
| Tokyo ROKI Co., Ltd. | 69 |
28 |
| Alfa Laval Corporate AB | 1310 |
27 |
| Alfdex AB | 59 |
24 |
| MANN+HUMMEL GmbH | 1752 |
24 |
| Ford Global Technologies, LLC | 20498 |
23 |
| Toyota Motor Corporation | 31693 |
20 |
| Donaldson Company, Inc. | 1598 |
20 |
| Kubota Corporation | 3756 |
20 |
| Nifco Inc. | 1104 |
19 |
| Reinz-Dichtungs-GmbH | 275 |
19 |
| ThyssenKrupp Presta Teccenter AG | 235 |
19 |
| Isuzu Motors Limited | 2247 |
17 |
| Toyota Boshoku Kabushiki Kaisha | 1397 |
16 |
| Ufi Filters S.p.A. | 198 |
16 |
| Cummins Filtration Inc. | 194 |
15 |
| ElringKlinger AG | 535 |
15 |
| Hengst SE | 162 |
15 |
| Other owners | 541 |