- All sections
- B - Performing operations; transporting
- 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: 1566
10-year publication summary
|
92
|
90
|
126
|
177
|
165
|
161
|
167
|
205
|
187
|
57
|
| 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Donaldson Company, Inc. | 1465 |
89 |
| LG Electronics Inc. | 67565 |
66 |
| MANN+HUMMEL GmbH | 1617 |
61 |
| Isuzu Motors Limited | 2098 |
33 |
| Coway Co., Ltd. | 588 |
32 |
| Samsung Electronics Co., Ltd. | 123340 |
30 |
| 3m Innovative Properties Company | 20456 |
28 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13427 |
27 |
| Cummins Filtration IP, Inc. | 822 |
23 |
| Hino Motors, Ltd. | 419 |
18 |
| Daikin Industries, Ltd. | 8922 |
13 |
| Hitachi Construction Machinery Co., Ltd. | 2354 |
12 |
| Camfil USA, Inc. | 66 |
12 |
| Yanmar Co., Ltd. | 1527 |
12 |
| Denso Corporation | 23152 |
11 |
| Mitsubishi Heavy Industries, Ltd. | 7472 |
10 |
| NGK Insulators, Ltd. | 4432 |
10 |
| Atlas Copco Airpower, naamloze vennootschap | 810 |
10 |
| Volvo Truck Corporation | 2423 |
10 |
| BMC S.r.l. | 42 |
9 |
| Other owners | 1050 |