- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 37/04 - Controlling the filtration
Patent holdings for IPC class B01D 37/04
Total number of patents in this class: 296
10-year publication summary
|
10
|
17
|
37
|
24
|
44
|
39
|
31
|
31
|
26
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Coway Co., Ltd. | 649 |
12 |
| Repligen Corporation | 258 |
10 |
| Cummins Filtration IP, Inc. | 812 |
7 |
| LG Electronics Inc. | 69257 |
6 |
| Samsung Electronics Co., Ltd. | 131630 |
5 |
| HYDAC Filtertechnik GmbH | 294 |
5 |
| Coway Co., Ltd. | 13 |
5 |
| Tokyo Electron Limited | 11599 |
4 |
| DEKA Products Limited Partnership | 1640 |
4 |
| Donaldson Company, Inc. | 1513 |
4 |
| Ecolab USA Inc. | 5190 |
4 |
| Nalco Company | 620 |
4 |
| Caterpillar Inc. | 8877 |
3 |
| Xiaomi Inc. | 1683 |
3 |
| Boll & Kirch Filterbau GmbH | 35 |
3 |
| FANUC Corporation | 5803 |
3 |
| RPM Industries, LLC | 65 |
3 |
| C.C. Jensen A/S | 47 |
3 |
| Alcoa Canada Co | 5 |
3 |
| Neptune Benson, Inc. | 51 |
3 |
| Other owners | 202 |