- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 61/02 - Reverse osmosisHyperfiltration
Patent holdings for IPC class B01D 61/02
Total number of patents in this class: 3061
10-year publication summary
|
220
|
286
|
274
|
244
|
283
|
289
|
253
|
240
|
249
|
225
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toray Industries, Inc. | 7006 |
84 |
| Kurita Water Industries Ltd. | 1224 |
79 |
| LG Chem, Ltd. | 17685 |
60 |
| Organo Corporation | 506 |
53 |
| BL Technologies, Inc. | 838 |
35 |
| Fluid Equipment Development Company, LLC | 89 |
35 |
| Nitto Denko Corporation | 8349 |
34 |
| Coway Co., Ltd. | 742 |
30 |
| Massachusetts Institute of Technology | 10124 |
25 |
| Gradiant Corporation | 139 |
25 |
| Veolia Water Solutions & Technologies Support | 535 |
25 |
| Hitachi, Ltd. | 15655 |
22 |
| Toray Advanced Materials Korea Inc. | 270 |
22 |
| BP Exploration Operating Company Limited | 265 |
22 |
| Ecolab USA Inc. | 5578 |
22 |
| Porifera, Inc. | 69 |
22 |
| Nanyang Technological University | 2064 |
20 |
| National University of Singapore | 2509 |
20 |
| General Electric Company | 13858 |
17 |
| DDP Specialty Electronic Materials US, LLC | 841 |
17 |
| Other owners | 2392 |