- All sections
- B - Performing operationstransporting
- 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: 77
10-year publication summary
|
5
|
6
|
13
|
11
|
9
|
7
|
9
|
1
|
3
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cummins Filtration IP, Inc. | 590 |
8 |
| 3m Innovative Properties Company | 17478 |
3 |
| EcoWater Systems LLC | 142 |
3 |
| King Technology, Inc. | 293 |
3 |
| EMD Millipore Corporation | 631 |
2 |
| Caterpillar Inc. | 10267 |
2 |
| Baldwin Filters, Inc. | 230 |
2 |
| Goodrich Corporation | 2182 |
2 |
| Hayward Industries, Inc. | 678 |
2 |
| le Groupe DSD Inc. | 36 |
2 |
| Unitika Ltd. | 447 |
2 |
| Veeder-Root Company | 77 |
2 |
| Yamashin-filter Corp. | 131 |
2 |
| Blade Filters Inc. | 8 |
2 |
| Pratt & Whitney Canada Corp. | 5479 |
1 |
| A. Kayser Automotive Systems GmbH | 30 |
1 |
| Advanced Filtration Systems Inc. | 17 |
1 |
| Avon Protection Systems, Inc. | 30 |
1 |
| BL Technologies, Inc. | 843 |
1 |
| Brita GmbH | 95 |
1 |
| Other owners | 34 |