- 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: 1255
10-year publication summary
|
81
|
102
|
85
|
116
|
96
|
102
|
97
|
92
|
103
|
78
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Gambro Lundia AB | 1373 |
73 |
| BASF SE | 21036 |
64 |
| Toray Industries, Inc. | 7006 |
59 |
| Asahi Kasei Medical Co., Ltd. | 264 |
35 |
| Asahi Kasei Kabushiki Kaisha | 2705 |
33 |
| Toyobo Co., Ltd. | 2464 |
31 |
| FUJIFILM Corporation | 29713 |
29 |
| Uop LLC | 4247 |
24 |
| Nitto Denko Corporation | 8346 |
20 |
| Fresenius Medical Care Deutschland GmbH | 2178 |
20 |
| Solvay Specialty Polymers USA, LLC | 597 |
18 |
| EMD Millipore Corporation | 648 |
17 |
| Entegris, Inc. | 1901 |
17 |
| King Fahd University of Petroleum and Minerals | 1311 |
16 |
| Solventum Intellectual Properties Company | 3342 |
16 |
| Fresenius Medical Care Holdings, Inc. | 1423 |
15 |
| National University of Singapore | 2488 |
15 |
| Sartorius Stedim Biotech GmbH | 842 |
14 |
| LG Chem, Ltd. | 17680 |
13 |
| 3m Innovative Properties Company | 17762 |
12 |
| Other owners | 714 |