- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
Patent holdings for IPC class B01D 46/24
Total number of patents in this class: 3116
10-year publication summary
|
280
|
278
|
269
|
291
|
298
|
240
|
217
|
186
|
162
|
21
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MANN+HUMMEL GmbH | 1791 |
333 |
| Donaldson Company, Inc. | 1600 |
285 |
| NGK Insulators, Ltd. | 5192 |
277 |
| Corning Incorporated | 10374 |
250 |
| LG Electronics Inc. | 74262 |
76 |
| Cummins Filtration IP, Inc. | 776 |
74 |
| Caterpillar Inc. | 9983 |
41 |
| Pall Corporation | 341 |
34 |
| Ibiden Co., Ltd. | 1691 |
33 |
| MAHLE International GmbH | 2841 |
32 |
| Johnson Matthey Public Limited Company | 1737 |
28 |
| Volvo Truck Corporation | 3680 |
28 |
| Denso Corporation | 24965 |
27 |
| K&N Engineering, Inc. | 441 |
27 |
| Saint-Gobain Centre de Recherches et d'Etudes Europeen | 495 |
26 |
| Parker-Hannifin Corporation | 1022 |
24 |
| Hitachi Metals, Ltd. | 1941 |
23 |
| Ufi Filters S.p.A. | 189 |
22 |
| Umicore AG & Co. KG | 863 |
21 |
| Cummins Filtration Inc. | 182 |
20 |
| Other owners | 1435 |