- All sections
- B - Performing operations; transporting
- 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: 2899
10-year publication summary
|
238
|
212
|
281
|
283
|
272
|
299
|
301
|
234
|
214
|
69
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MANN+HUMMEL GmbH | 1682 |
301 |
| NGK Insulators, Ltd. | 4589 |
257 |
| Donaldson Company, Inc. | 1513 |
251 |
| Corning Incorporated | 9932 |
226 |
| Cummins Filtration IP, Inc. | 812 |
76 |
| LG Electronics Inc. | 69257 |
64 |
| MAHLE International GmbH | 2670 |
32 |
| Caterpillar Inc. | 8877 |
31 |
| Ibiden Co., Ltd. | 1724 |
31 |
| Robert Bosch GmbH | 40953 |
30 |
| Denso Corporation | 23338 |
27 |
| Saint-Gobain Centre de Recherches et d'Etudes Europeen | 475 |
27 |
| Volvo Truck Corporation | 2764 |
27 |
| Johnson Matthey Public Limited Company | 1852 |
26 |
| Umicore AG & Co. KG | 867 |
26 |
| K&N Engineering, Inc. | 405 |
24 |
| Hitachi Metals, Ltd. | 2175 |
23 |
| Baldwin Filters, Inc. | 257 |
23 |
| Pall Corporation | 392 |
23 |
| Ufi Filters S.p.A. | 196 |
22 |
| Other owners | 1352 |