- All sections
- B - Performing operations; transporting
- 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: 535
10-year publication summary
|
34
|
41
|
66
|
59
|
53
|
43
|
28
|
53
|
27
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MANN+HUMMEL GmbH | 1682 |
61 |
| MAHLE International GmbH | 2670 |
46 |
| Donaldson Company, Inc. | 1513 |
44 |
| Cummins Filtration IP, Inc. | 812 |
34 |
| Hengst SE | 126 |
25 |
| HYDAC Filtertechnik GmbH | 294 |
21 |
| Volvo Truck Corporation | 2764 |
18 |
| Caterpillar Inc. | 8877 |
15 |
| Solventum Intellectual Properties Company | 2681 |
12 |
| Haier US Appliance Solutions, Inc. | 3178 |
11 |
| Hengst SE & Co. KG | 24 |
11 |
| Baldwin Filters, Inc. | 257 |
9 |
| 3m Innovative Properties Company | 18406 |
6 |
| Hengst GmbH & Co. KG | 64 |
6 |
| Parker-Hannifin Corporation | 999 |
6 |
| PENTAIR Filtration, Inc. | 12 |
6 |
| Joma-Polytec Kunststofftechnik GmbH | 18 |
5 |
| Sogefi Filtration | 46 |
5 |
| Daimler AG | 3462 |
4 |
| Advanced Filtration Systems Inc. | 24 |
4 |
| Other owners | 186 |