- 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: 3075
10-year publication summary
|
208
|
280
|
278
|
269
|
291
|
297
|
239
|
217
|
186
|
132
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MANN+HUMMEL GmbH | 1771 |
331 |
| Donaldson Company, Inc. | 1600 |
284 |
| NGK Insulators, Ltd. | 5115 |
270 |
| Corning Incorporated | 10336 |
249 |
| Cummins Filtration IP, Inc. | 806 |
78 |
| LG Electronics Inc. | 73714 |
76 |
| Caterpillar Inc. | 9659 |
37 |
| Ibiden Co., Ltd. | 1720 |
33 |
| MAHLE International GmbH | 2810 |
32 |
| Pall Corporation | 335 |
29 |
| Johnson Matthey Public Limited Company | 1876 |
28 |
| Volvo Truck Corporation | 3487 |
28 |
| Denso Corporation | 24588 |
27 |
| Saint-Gobain Centre de Recherches et d'Etudes Europeen | 491 |
27 |
| K&N Engineering, Inc. | 436 |
27 |
| Hitachi Metals, Ltd. | 1969 |
23 |
| Parker-Hannifin Corporation | 996 |
22 |
| Ufi Filters S.p.A. | 194 |
22 |
| Baldwin Filters, Inc. | 243 |
21 |
| Umicore AG & Co. KG | 863 |
21 |
| Other owners | 1410 |