- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 46/44 - Auxiliary equipment or operation thereof controlling filtration
Patent holdings for IPC class B01D 46/44
Total number of patents in this class: 797
10-year publication summary
|
56
|
88
|
79
|
75
|
109
|
123
|
119
|
70
|
81
|
23
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 72357 |
34 |
| Donaldson Company, Inc. | 1595 |
27 |
| Microjet Technology Co., Ltd. | 444 |
25 |
| Samsung Electronics Co., Ltd. | 143812 |
19 |
| 3m Innovative Properties Company | 17842 |
18 |
| Coway Co., Ltd. | 717 |
17 |
| MANN+HUMMEL GmbH | 1751 |
11 |
| Industrial Vacuum Transfer Services USA, LLC | 35 |
8 |
| Illinois Tool Works Inc. | 11392 |
7 |
| Toyota Motor Corporation | 31377 |
7 |
| Carl Freudenberg KG | 1369 |
7 |
| Robert Bosch GmbH | 42411 |
6 |
| Ford Global Technologies, LLC | 20396 |
6 |
| The Boeing Company | 19994 |
5 |
| Koninklijke Philips N.V. | 24527 |
5 |
| Life Technologies Corporation | 3265 |
5 |
| Carrier Corporation | 4364 |
5 |
| Cummins Filtration IP, Inc. | 809 |
5 |
| Cummins Inc. | 2551 |
5 |
| Dust Company, Inc. | 18 |
5 |
| Other owners | 570 |