- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 27/04 - Cartridge filters of the throw-away type with cartridges made of a piece of unitary material, e.g. filter paper
Patent holdings for IPC class B01D 27/04
Total number of patents in this class: 89
10-year publication summary
|
9
|
3
|
5
|
6
|
13
|
11
|
9
|
7
|
8
|
1
|
| 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 |
8 |
| 3m Innovative Properties Company | 18406 |
3 |
| Brita LP | 110 |
3 |
| EcoWater Systems LLC | 139 |
3 |
| Goodrich Corporation | 2081 |
3 |
| King Technology, Inc. | 241 |
3 |
| EMD Millipore Corporation | 657 |
2 |
| Baldwin Filters, Inc. | 257 |
2 |
| Cummins Filtration Inc. | 171 |
2 |
| Hayward Industries, Inc. | 669 |
2 |
| le Groupe DSD Inc. | 36 |
2 |
| Unitika Ltd. | 441 |
2 |
| Veeder-Root Company | 92 |
2 |
| Yamashin-filter Corp. | 115 |
2 |
| Blade Filters Inc. | 8 |
2 |
| Unilever PLC | 3540 |
1 |
| Unilever N.V. | 3440 |
1 |
| Ford Motor Company | 2817 |
1 |
| Pratt & Whitney Canada Corp. | 4215 |
1 |
| Caterpillar Inc. | 8877 |
1 |
| Other owners | 43 |