- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 61/02 - Reverse osmosis; Hyperfiltration
Patent holdings for IPC class B01D 61/02
Total number of patents in this class: 2628
10-year publication summary
|
186
|
222
|
294
|
288
|
255
|
297
|
302
|
252
|
241
|
62
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toray Industries, Inc. | 6652 |
74 |
| Kurita Water Industries Ltd. | 1110 |
73 |
| LG Chem, Ltd. | 17205 |
60 |
| Organo Corporation | 394 |
43 |
| BL Technologies, Inc. | 831 |
35 |
| Nitto Denko Corporation | 7879 |
33 |
| Fluid Equipment Development Company, LLC | 84 |
33 |
| Veolia Water Solutions & Technologies Support | 547 |
25 |
| BP Exploration Operating Company Limited | 270 |
23 |
| Coway Co., Ltd. | 649 |
23 |
| Hitachi, Ltd. | 16452 |
22 |
| Massachusetts Institute of Technology | 9795 |
22 |
| Dow Global Technologies LLC | 10147 |
22 |
| Porifera, Inc. | 67 |
21 |
| Ecolab USA Inc. | 5190 |
20 |
| Gradiant Corporation | 123 |
19 |
| National University of Singapore | 2228 |
19 |
| Toray Advanced Materials Korea Inc. | 222 |
18 |
| Toyobo Co., Ltd. | 2286 |
18 |
| General Electric Company | 18133 |
17 |
| Other owners | 2008 |