- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 71/20 - Esters of inorganic acids, e.g. cellulose nitrate
Patent holdings for IPC class B01D 71/20
Total number of patents in this class: 28
10-year publication summary
|
1
|
2
|
2
|
3
|
3
|
3
|
2
|
2
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NB POSTECH | 3 |
3 |
| Merck Patent GmbH | 5729 |
2 |
| Whatman GmbH | 6 |
2 |
| Global Life Sciences Solutions Germany GmbH | 77 |
2 |
| Bayer HealthCare LLC | 1308 |
1 |
| Board of Trustees of the University of Arkansas | 832 |
1 |
| GE Healthcare Limited | 632 |
1 |
| Kyushu University, National University Corporation | 1721 |
1 |
| Nanjing University | 800 |
1 |
| Nanopareil, LLC | 13 |
1 |
| Newsouth Innovations Pty Limited | 622 |
1 |
| Renaissance Energy Research Corporation | 63 |
1 |
| Sartorius Stedim Biotech GmbH | 875 |
1 |
| Sydney Water Corporation | 5 |
1 |
| The University of Tokyo | 4369 |
1 |
| University of Washington | 2447 |
1 |
| Whatman, Inc. | 4 |
1 |
| Sartorius Stedium Biotech GmbH | 3 |
1 |
| Hangzhou Cobetter Filtration Equipment Co., Ltd | 32 |
1 |
| HeNan Polytechnic University | 102 |
1 |
| Other owners | 3 |