- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 61/00 - Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
Patent holdings for IPC class B01D 61/00
Total number of patents in this class: 1788
10-year publication summary
|
127
|
124
|
167
|
141
|
104
|
130
|
105
|
103
|
87
|
27
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Asahi Kasei Kabushiki Kaisha | 2429 |
32 |
| Toyobo Co., Ltd. | 2286 |
30 |
| DIC Corporation | 3597 |
23 |
| Porifera, Inc. | 67 |
20 |
| Nanyang Technological University | 1739 |
18 |
| ExxonMobil Research And Engineering Company | 2830 |
17 |
| Evoqua Water Technologies LLC | 904 |
17 |
| Mozarc Medical US LLC | 323 |
17 |
| Centre National de La Recherche Scientifique | 9632 |
14 |
| FUJIFILM Corporation | 27102 |
14 |
| Fresenius Medical Care Holdings, Inc. | 1354 |
13 |
| Kurita Water Industries Ltd. | 1110 |
13 |
| National University of Singapore | 2228 |
13 |
| Aquaporin A/S | 69 |
13 |
| Nitto Denko Corporation | 7879 |
12 |
| Fresenius Medical Care Deutschland GmbH | 2100 |
12 |
| Trevi Systems Inc. | 18 |
12 |
| 3m Innovative Properties Company | 18406 |
11 |
| Baxter International Inc. | 2425 |
11 |
| Fenwal, Inc. | 626 |
11 |
| Other owners | 1465 |