- 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: 1236
10-year publication summary
|
81
|
102
|
85
|
116
|
96
|
102
|
97
|
92
|
103
|
61
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Gambro Lundia AB | 1379 |
73 |
| BASF SE | 20940 |
64 |
| Toray Industries, Inc. | 6950 |
57 |
| Asahi Kasei Medical Co., Ltd. | 266 |
35 |
| Asahi Kasei Kabushiki Kaisha | 2677 |
33 |
| Toyobo Co., Ltd. | 2498 |
31 |
| FUJIFILM Corporation | 29437 |
29 |
| Uop LLC | 4237 |
24 |
| Fresenius Medical Care Deutschland GmbH | 2155 |
20 |
| EMD Millipore Corporation | 650 |
18 |
| Solvay Specialty Polymers USA, LLC | 587 |
18 |
| Nitto Denko Corporation | 8253 |
17 |
| Entegris, Inc. | 1872 |
17 |
| Fresenius Medical Care Holdings, Inc. | 1422 |
15 |
| National University of Singapore | 2455 |
15 |
| Solventum Intellectual Properties Company | 3332 |
15 |
| Sartorius Stedim Biotech GmbH | 831 |
14 |
| 3m Innovative Properties Company | 17823 |
13 |
| LG Chem, Ltd. | 17635 |
13 |
| Sumitomo Chemical Company, Limited | 9043 |
12 |
| Other owners | 703 |