- 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: 1266
10-year publication summary
|
127
|
150
|
134
|
103
|
92
|
77
|
51
|
44
|
41
|
13
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cummins Filtration IP, Inc. | 812 |
80 |
| MANN+HUMMEL GmbH | 1682 |
73 |
| Caterpillar Inc. | 8877 |
48 |
| Donaldson Company, Inc. | 1513 |
36 |
| MAHLE International GmbH | 2670 |
26 |
| Coway Co., Ltd. | 649 |
23 |
| 3m Innovative Properties Company | 18406 |
19 |
| HYDAC Filtertechnik GmbH | 294 |
16 |
| KX Technologies LLC | 158 |
13 |
| Mann+Hummel Filtration Technology US LLC | 76 |
13 |
| Baldwin Filters, Inc. | 257 |
11 |
| Cummins Filtration Inc. | 171 |
10 |
| EMD Millipore Corporation | 657 |
9 |
| Hamilton Sundstrand Corporation | 4525 |
8 |
| Fresenius Medical Care Holdings, Inc. | 1354 |
8 |
| Woongjin Coway Co., Ltd. | 160 |
8 |
| Honda Motor Co., Ltd. | 24537 |
7 |
| LG Electronics Inc. | 69257 |
7 |
| Aisan Kogyo Kabushiki Kaisha | 722 |
7 |
| Robert Bosch GmbH | 40953 |
6 |
| Other owners | 838 |