- 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: 1325
10-year publication summary
|
108
|
93
|
120
|
101
|
105
|
105
|
94
|
107
|
89
|
63
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Gambro Lundia AB | 1404 |
72 |
| BASF SE | 21318 |
67 |
| Toray Industries, Inc. | 7163 |
61 |
| Asahi Kasei Kabushiki Kaisha | 2871 |
34 |
| Toyobo Co., Ltd. | 2551 |
32 |
| FUJIFILM Corporation | 30774 |
29 |
| Asahi Kasei Medical Co., Ltd. | 231 |
27 |
| Uop LLC | 4401 |
24 |
| Nitto Denko Corporation | 8632 |
22 |
| Fresenius Medical Care Deutschland GmbH | 2247 |
22 |
| EMD Millipore Corporation | 634 |
18 |
| Entegris, Inc. | 2034 |
18 |
| King Fahd University of Petroleum and Minerals | 1601 |
17 |
| Solvay Specialty Polymers USA, LLC | 505 |
17 |
| Sartorius Stedim Biotech GmbH | 887 |
16 |
| Fresenius Medical Care Holdings, Inc. | 1422 |
15 |
| National University of Singapore | 2608 |
15 |
| Solventum Intellectual Properties Company | 3416 |
13 |
| 3m Innovative Properties Company | 17450 |
12 |
| Sumitomo Chemical Company, Limited | 8989 |
12 |
| Other owners | 782 |