- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
Patent holdings for IPC class B01D 46/00
Total number of patents in this class: 7799
10-year publication summary
|
500
|
637
|
677
|
850
|
775
|
779
|
813
|
917
|
873
|
271
|
| 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| MANN+HUMMEL GmbH | 1617 |
512 |
| Donaldson Company, Inc. | 1465 |
491 |
| Cummins Filtration IP, Inc. | 822 |
163 |
| LG Electronics Inc. | 67565 |
158 |
| NGK Insulators, Ltd. | 4432 |
155 |
| 3m Innovative Properties Company | 20456 |
150 |
| Ibiden Co., Ltd. | 1725 |
122 |
| Samsung Electronics Co., Ltd. | 123340 |
86 |
| Corning Incorporated | 9775 |
78 |
| Caterpillar Inc. | 8384 |
76 |
| MAHLE International GmbH | 2704 |
69 |
| K&N Engineering, Inc. | 402 |
63 |
| Baldwin Filters, Inc. | 254 |
62 |
| Camfil AB | 204 |
56 |
| Sumitomo Chemical Company, Limited | 8623 |
54 |
| Parker Intangibles LLC | 1214 |
47 |
| Ford Global Technologies, LLC | 19454 |
44 |
| Coway Co., Ltd. | 588 |
41 |
| Carl Freudenberg KG | 1356 |
38 |
| Hollingsworth & Vose Company | 289 |
38 |
| Other owners | 5296 |