- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 71/54 - PolyureasPolyurethanes
Patent holdings for IPC class B01D 71/54
Total number of patents in this class: 149
10-year publication summary
|
15
|
8
|
13
|
19
|
16
|
15
|
10
|
8
|
10
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 20892 |
10 |
| W. L. Gore & Associates, Inc. | 2674 |
7 |
| Asahi Kasei Kabushiki Kaisha | 2653 |
6 |
| Nitto Denko Corporation | 8219 |
5 |
| Uop LLC | 4236 |
4 |
| DSM IP Assets B.V. | 5603 |
4 |
| Toray Industries, Inc. | 6930 |
4 |
| Fresenius Medical Care Holdings, Inc. | 1418 |
4 |
| Solvay Specialty Polymers Italy S.p.A. | 755 |
4 |
| FUJIFILM Corporation | 29295 |
3 |
| Dow Global Technologies LLC | 10401 |
3 |
| The Board of Trustees of the University of Illinois | 2685 |
3 |
| Membrane Distillation Desalination Ltd. Co. | 6 |
3 |
| Core Energy Recovery Solutions Inc. | 27 |
3 |
| EMD Millipore Corporation | 649 |
2 |
| National Taiwan University | 1215 |
2 |
| Condalign AS | 26 |
2 |
| ELANTAS PDG, Inc. | 58 |
2 |
| Instituto Superior Tecnico | 153 |
2 |
| Instrumentation Laboratory Company | 236 |
2 |
| Other owners | 74 |