- All sections
- B - Performing operations; transporting
- 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
|
5
|
2
|
1
|
2
|
2
|
3
|
3
|
3
|
2
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NB POSTECH | 3 |
3 |
| Merck Patent GmbH | 5909 |
2 |
| Bayer HealthCare LLC | 1415 |
2 |
| Sartorius Stedim Biotech GmbH | 774 |
2 |
| Whatman GmbH | 7 |
2 |
| Global Life Sciences Solutions Germany GmbH | 77 |
2 |
| Board of Trustees of the University of Arkansas | 771 |
1 |
| GE Healthcare Limited | 711 |
1 |
| Kyushu University, National University Corporation | 1572 |
1 |
| Nanjing University | 646 |
1 |
| Nanopareil, LLC | 17 |
1 |
| Newsouth Innovations Pty Limited | 567 |
1 |
| Renaissance Energy Research Corporation | 60 |
1 |
| Sydney Water Corporation | 8 |
1 |
| The University of Tokyo | 3903 |
1 |
| Whatman, Inc. | 7 |
1 |
| Sartorius Stedium Biotech GmbH | 3 |
1 |
| HeNan Polytechnic University | 81 |
1 |
| Sensing Network Inc. | 1 |
1 |
| Tokachi Telephone Network Inc. | 1 |
1 |
| Other owners | 1 |