- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 71/62 - Polycondensates having nitrogen-containing heterocyclic rings in the main chain
Patent holdings for IPC class B01D 71/62
Total number of patents in this class: 205
10-year publication summary
46
|
23
|
20
|
14
|
17
|
13
|
11
|
18
|
11
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Uop LLC | 4083 |
13 |
King Abdullah University of Science and Technology | 1703 |
9 |
Asahi Kasei Kabushiki Kaisha | 2429 |
8 |
Toray Industries, Inc. | 6652 |
7 |
Council of Scientific & Industrial Research | 1397 |
7 |
FUJIFILM Manufacturing Europe B.V. | 271 |
7 |
BASF SE | 19740 |
6 |
FUJIFILM Corporation | 27102 |
5 |
The Regents of the University of California | 18943 |
4 |
Nitto Denko Corporation | 7879 |
4 |
IUCF-HYU (Industry-University Cooperation Foundation Hanyang University) | 1115 |
4 |
Saudi Arabian Oil Company | 11322 |
4 |
Centre National de La Recherche Scientifique | 9632 |
3 |
The Board of Trustees of the Leland Stanford Junior University | 6054 |
3 |
Board of Regents, The University of Texas System | 5370 |
3 |
Cornell University | 3036 |
3 |
Fresenius Medical Care Deutschland GmbH | 2100 |
3 |
Helmholtz-Zentrum Geesthacht Zentrum für Material-und Küstenforschung GmbH | 67 |
3 |
National University of Singapore | 2228 |
3 |
The Regents of the University of Colorado, a body corporate | 2430 |
3 |
Other owners | 103 |