- 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: 1300
10-year publication summary
|
108
|
93
|
120
|
101
|
105
|
105
|
94
|
107
|
89
|
37
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Gambro Lundia AB | 1375 |
71 |
| BASF SE | 21313 |
64 |
| Toray Industries, Inc. | 7092 |
60 |
| Asahi Kasei Kabushiki Kaisha | 2828 |
34 |
| Toyobo Co., Ltd. | 2531 |
32 |
| FUJIFILM Corporation | 30479 |
29 |
| Asahi Kasei Medical Co., Ltd. | 232 |
27 |
| Uop LLC | 4394 |
24 |
| Nitto Denko Corporation | 8517 |
21 |
| Fresenius Medical Care Deutschland GmbH | 2228 |
21 |
| Entegris, Inc. | 2004 |
18 |
| EMD Millipore Corporation | 631 |
17 |
| King Fahd University of Petroleum and Minerals | 1563 |
17 |
| Solvay Specialty Polymers USA, LLC | 506 |
17 |
| Fresenius Medical Care Holdings, Inc. | 1423 |
15 |
| National University of Singapore | 2581 |
15 |
| Sartorius Stedim Biotech GmbH | 871 |
14 |
| Solventum Intellectual Properties Company | 3408 |
14 |
| 3m Innovative Properties Company | 17497 |
12 |
| Sumitomo Chemical Company, Limited | 9018 |
12 |
| Other owners | 766 |