- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 71/68 - PolysulfonesPolyethersulfones
Patent holdings for IPC class B01D 71/68
Total number of patents in this class: 1238
10-year publication summary
|
84
|
108
|
93
|
120
|
101
|
105
|
104
|
94
|
104
|
59
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Gambro Lundia AB | 1366 |
72 |
| BASF SE | 20926 |
64 |
| Toray Industries, Inc. | 6936 |
57 |
| Asahi Kasei Medical Co., Ltd. | 274 |
35 |
| Asahi Kasei Kabushiki Kaisha | 2666 |
33 |
| Toyobo Co., Ltd. | 2490 |
31 |
| FUJIFILM Corporation | 29350 |
29 |
| Uop LLC | 4244 |
24 |
| Fresenius Medical Care Deutschland GmbH | 2151 |
20 |
| EMD Millipore Corporation | 649 |
18 |
| Solvay Specialty Polymers USA, LLC | 582 |
18 |
| Nitto Denko Corporation | 8230 |
17 |
| Entegris, Inc. | 1867 |
17 |
| Fresenius Medical Care Holdings, Inc. | 1419 |
15 |
| National University of Singapore | 2445 |
15 |
| Solventum Intellectual Properties Company | 3324 |
15 |
| Sartorius Stedim Biotech GmbH | 831 |
14 |
| 3m Innovative Properties Company | 17849 |
13 |
| LG Chem, Ltd. | 17620 |
13 |
| Sumitomo Chemical Company, Limited | 9047 |
12 |
| Other owners | 706 |