- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 35/04 - Plug, tap, or cock filters
Patent holdings for IPC class B01D 35/04
Total number of patents in this class: 196
10-year publication summary
|
11
|
23
|
23
|
33
|
13
|
18
|
21
|
13
|
13
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 73344 |
26 |
| Coway Co., Ltd. | 731 |
13 |
| Seoul Viosys Co., Ltd. | 1472 |
5 |
| Yuyao Yadong Plastic Co., Ltd. | 16 |
5 |
| AS America, Inc. | 1041 |
4 |
| Woongjin Coway Co., Ltd. | 137 |
4 |
| Robert Bosch GmbH | 42705 |
3 |
| DS Services of America, Inc. | 262 |
3 |
| Guangzhou Seagull Kitchen and Bath Products Co., Ltd. | 30 |
3 |
| Louisville Water Company | 17 |
3 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 556 |
3 |
| Bumil Industrial Co., Ltd. | 11 |
3 |
| Taizhou Guoren Temperature Control Sanitary Ware Technology Co., Ltd | 8 |
3 |
| LG Innotek Co., Ltd. | 7667 |
2 |
| Xiaomi Inc. | 1711 |
2 |
| Bodyfriend Co., Ltd. | 227 |
2 |
| i3 Membrane GmbH | 25 |
2 |
| Obschestvo S Ogranichennoi Otvetstvennostiyu "eurostandart" | 9 |
2 |
| PUR Water Purification Products, Inc. | 15 |
2 |
| Saint-Gobain Performance Plastics Corporation | 1036 |
2 |
| Other owners | 104 |