- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 46/42 - Auxiliary equipment or operation thereof
Patent holdings for IPC class B01D 46/42
Total number of patents in this class: 1709
10-year publication summary
|
126
|
178
|
165
|
162
|
169
|
210
|
192
|
156
|
127
|
54
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Donaldson Company, Inc. | 1598 |
101 |
| MANN+HUMMEL GmbH | 1751 |
78 |
| LG Electronics Inc. | 72473 |
75 |
| Samsung Electronics Co., Ltd. | 144143 |
37 |
| Coway Co., Ltd. | 718 |
34 |
| Isuzu Motors Limited | 2247 |
30 |
| 3m Innovative Properties Company | 17849 |
25 |
| Cummins Filtration IP, Inc. | 808 |
25 |
| Microjet Technology Co., Ltd. | 444 |
16 |
| Daikin Industries, Ltd. | 9957 |
15 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12864 |
14 |
| BJ Energy Solutions, LLC (formerly TES Asset Acquisition, LLC) | 212 |
13 |
| Hitachi Construction Machinery Co., Ltd. | 2623 |
12 |
| Mitsubishi Heavy Industries, Ltd. | 8647 |
11 |
| Volvo Truck Corporation | 3306 |
11 |
| Yanmar Co., Ltd. | 1416 |
11 |
| Camfil USA, Inc. | 64 |
10 |
| Hino Motors, Ltd. | 347 |
10 |
| Mitsubishi Electric Corporation | 45811 |
9 |
| NGK Insulators, Ltd. | 4920 |
9 |
| Other owners | 1163 |