- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 71/54 - Polyureas; Polyurethanes
Patent holdings for IPC class B01D 71/54
Total number of patents in this class: 142
10-year publication summary
15
|
8
|
13
|
19
|
16
|
15
|
10
|
8
|
10
|
1
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
BASF SE | 20403 |
10 |
Asahi Kasei Kabushiki Kaisha | 2566 |
6 |
W. L. Gore & Associates, Inc. | 2684 |
5 |
Nitto Denko Corporation | 8085 |
4 |
Uop LLC | 4188 |
4 |
DSM IP Assets B.V. | 5822 |
4 |
Fresenius Medical Care Holdings, Inc. | 1394 |
4 |
Solvay Specialty Polymers Italy S.p.A. | 737 |
4 |
FUJIFILM Corporation | 28555 |
3 |
Dow Global Technologies LLC | 10149 |
3 |
Toray Industries, Inc. | 6848 |
3 |
Membrane Distillation Desalination Ltd. Co. | 6 |
3 |
Core Energy Recovery Solutions Inc. | 27 |
3 |
EMD Millipore Corporation | 652 |
2 |
The Board of Trustees of the University of Illinois | 2666 |
2 |
National Taiwan University | 1165 |
2 |
Condalign AS | 24 |
2 |
ELANTAS PDG, Inc. | 57 |
2 |
Instituto Superior Tecnico | 151 |
2 |
Instrumentation Laboratory Company | 231 |
2 |
Other owners | 72 |