- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 35/153 - Anti-leakage or anti-return valves
Patent holdings for IPC class B01D 35/153
Total number of patents in this class: 537
10-year publication summary
|
41
|
66
|
59
|
53
|
45
|
28
|
53
|
28
|
14
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MANN+HUMMEL GmbH | 1751 |
62 |
| MAHLE International GmbH | 2740 |
46 |
| Donaldson Company, Inc. | 1595 |
41 |
| Cummins Filtration IP, Inc. | 809 |
33 |
| Hengst SE | 158 |
25 |
| HYDAC Filtertechnik GmbH | 295 |
22 |
| Volvo Truck Corporation | 3290 |
18 |
| Caterpillar Inc. | 9449 |
16 |
| Solventum Intellectual Properties Company | 3307 |
13 |
| Haier US Appliance Solutions, Inc. | 3554 |
11 |
| Hengst SE & Co. KG | 23 |
11 |
| Baldwin Filters, Inc. | 234 |
7 |
| Parker-Hannifin Corporation | 1032 |
7 |
| Hengst GmbH & Co. KG | 53 |
6 |
| PENTAIR Filtration, Inc. | 12 |
6 |
| Cummins Filtration Inc. | 192 |
5 |
| Joma-Polytec Kunststofftechnik GmbH | 17 |
5 |
| Sogefi Filtration | 50 |
5 |
| Daimler AG | 3404 |
4 |
| Advanced Filtration Systems Inc. | 24 |
4 |
| Other owners | 190 |