- 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: 1280
10-year publication summary
|
102
|
85
|
116
|
96
|
102
|
97
|
92
|
103
|
87
|
17
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Gambro Lundia AB | 1353 |
73 |
| BASF SE | 21129 |
63 |
| Toray Industries, Inc. | 7036 |
59 |
| Asahi Kasei Kabushiki Kaisha | 2781 |
34 |
| Toyobo Co., Ltd. | 2514 |
31 |
| FUJIFILM Corporation | 30210 |
29 |
| Asahi Kasei Medical Co., Ltd. | 234 |
28 |
| Uop LLC | 4307 |
24 |
| Nitto Denko Corporation | 8466 |
21 |
| Fresenius Medical Care Deutschland GmbH | 2211 |
20 |
| Entegris, Inc. | 1979 |
18 |
| EMD Millipore Corporation | 634 |
17 |
| Solvay Specialty Polymers USA, LLC | 507 |
17 |
| King Fahd University of Petroleum and Minerals | 1477 |
16 |
| Solventum Intellectual Properties Company | 3368 |
16 |
| Fresenius Medical Care Holdings, Inc. | 1419 |
15 |
| National University of Singapore | 2551 |
15 |
| Sartorius Stedim Biotech GmbH | 874 |
14 |
| 3m Innovative Properties Company | 17511 |
12 |
| LG Chem, Ltd. | 17813 |
12 |
| Other owners | 746 |