- All sections
- B - Performing operationstransporting
- 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 filtrationFilter housing constructions
Patent holdings for IPC class B01D 35/00
Total number of patents in this class: 1246
10-year publication summary
|
149
|
133
|
98
|
89
|
76
|
51
|
46
|
43
|
33
|
32
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cummins Filtration IP, Inc. | 805 |
80 |
| MANN+HUMMEL GmbH | 1777 |
75 |
| Caterpillar Inc. | 9852 |
50 |
| Donaldson Company, Inc. | 1589 |
39 |
| MAHLE International GmbH | 2838 |
28 |
| Coway Co., Ltd. | 748 |
23 |
| 3m Innovative Properties Company | 17719 |
18 |
| Cummins Filtration Inc. | 202 |
15 |
| HYDAC Filtertechnik GmbH | 293 |
15 |
| Mann+Hummel Filtration Technology US LLC | 76 |
13 |
| KX Technologies LLC | 154 |
11 |
| Hamilton Sundstrand Corporation | 4956 |
10 |
| Baldwin Filters, Inc. | 241 |
9 |
| EMD Millipore Corporation | 640 |
8 |
| Fresenius Medical Care Holdings, Inc. | 1425 |
8 |
| Honda Motor Co., Ltd. | 25784 |
7 |
| LG Electronics Inc. | 73825 |
7 |
| Aisan Kogyo Kabushiki Kaisha | 750 |
7 |
| Whirlpool Corporation | 4475 |
6 |
| Aquasana, Inc. | 17 |
6 |
| Other owners | 811 |