- All sections
- B - Performing operations; transporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J 4/04 - Feed devices; Feed or outlet control devices using osmotic pressure
Patent holdings for IPC class B01J 4/04
Total number of patents in this class: 10
10-year publication summary
|
0
|
2
|
0
|
1
|
3
|
2
|
0
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0
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0
|
0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Casio Computer Co., Ltd. | 3372 |
1 |
| Activated Research Company, LLC | 15 |
1 |
| Johnsondiversey, Inc. | 81 |
1 |
| Porifera, Inc. | 67 |
1 |
| Xiamen University | 515 |
1 |
| Zhengzhou University | 107 |
1 |
| Filtration Group GmbH | 17 |
1 |
| Subcuject APS | 6 |
1 |
| Hosei University | 36 |
1 |
| Kaiwa Industrial Co., Ltd. | 2 |
1 |
| Other owners | 0 |