- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 35/00 - Filtering devices having features not specifically covered by groups , or for applications not specifically covered by groups ; Auxiliary devices for filtration; Filter housing constructions
Patent holdings for IPC class B01D 35/00
Total number of patents in this class: 1249
10-year publication summary
|
150
|
134
|
103
|
92
|
77
|
51
|
46
|
42
|
33
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cummins Filtration IP, Inc. | 807 |
79 |
| MANN+HUMMEL GmbH | 1720 |
74 |
| Caterpillar Inc. | 9149 |
48 |
| Donaldson Company, Inc. | 1576 |
36 |
| MAHLE International GmbH | 2687 |
27 |
| Coway Co., Ltd. | 692 |
23 |
| 3m Innovative Properties Company | 17968 |
19 |
| HYDAC Filtertechnik GmbH | 296 |
15 |
| KX Technologies LLC | 157 |
13 |
| Mann+Hummel Filtration Technology US LLC | 75 |
13 |
| Cummins Filtration Inc. | 186 |
12 |
| Baldwin Filters, Inc. | 240 |
10 |
| EMD Millipore Corporation | 653 |
9 |
| Hamilton Sundstrand Corporation | 4712 |
9 |
| Fresenius Medical Care Holdings, Inc. | 1391 |
8 |
| Woongjin Coway Co., Ltd. | 153 |
8 |
| Honda Motor Co., Ltd. | 24855 |
7 |
| LG Electronics Inc. | 70831 |
7 |
| Aisan Kogyo Kabushiki Kaisha | 720 |
7 |
| Whirlpool Corporation | 4323 |
6 |
| Other owners | 819 |