- 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: 2968
10-year publication summary
|
222
|
294
|
288
|
257
|
297
|
302
|
258
|
251
|
251
|
154
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toray Industries, Inc. | 6935 |
83 |
| Kurita Water Industries Ltd. | 1191 |
76 |
| LG Chem, Ltd. | 17615 |
60 |
| Organo Corporation | 464 |
51 |
| Nitto Denko Corporation | 8217 |
35 |
| BL Technologies, Inc. | 833 |
35 |
| Fluid Equipment Development Company, LLC | 89 |
35 |
| Coway Co., Ltd. | 732 |
30 |
| Veolia Water Solutions & Technologies Support | 534 |
25 |
| Massachusetts Institute of Technology | 10041 |
24 |
| Hitachi, Ltd. | 15467 |
22 |
| BP Exploration Operating Company Limited | 268 |
22 |
| Gradiant Corporation | 129 |
22 |
| Toray Advanced Materials Korea Inc. | 258 |
21 |
| Ecolab USA Inc. | 5475 |
21 |
| Porifera, Inc. | 68 |
21 |
| Nanyang Technological University | 1999 |
19 |
| National University of Singapore | 2443 |
19 |
| Toyobo Co., Ltd. | 2489 |
18 |
| General Electric Company | 13762 |
17 |
| Other owners | 2312 |