- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 71/22 - Cellulose ethers
Patent holdings for IPC class B01D 71/22
Total number of patents in this class: 28
10-year publication summary
|
1
|
0
|
1
|
1
|
4
|
6
|
1
|
1
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 28857 |
6 |
| Sartorius Stedim Biotech GmbH | 807 |
4 |
| Toray Industries, Inc. | 6865 |
3 |
| Toyobo Co., Ltd. | 2428 |
2 |
| LG Chem, Ltd. | 17662 |
1 |
| Centre National de La Recherche Scientifique | 10149 |
1 |
| Uop LLC | 4188 |
1 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10702 |
1 |
| Ecole Nationale Superieure de Chimie de Montpellier | 185 |
1 |
| Figaro Engineering Inc. | 43 |
1 |
| Fresenius Medical Care Deutschland GmbH | 2138 |
1 |
| Lotte Fine Chemical Co., Ltd. | 103 |
1 |
| New Cosmos Electric Co., Ltd. | 67 |
1 |
| Samsung Fine Chemicals Co., Ltd. | 178 |
1 |
| Universite de Montpellier | 962 |
1 |
| University of Calcutta | 29 |
1 |
| University Public Corporation Osaka | 223 |
1 |
| Other owners | 0 |