- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 71/22 - Cellulose ethers
Patent holdings for IPC class B01D 71/22
Total number of patents in this class: 27
10-year publication summary
|
3
|
1
|
0
|
1
|
1
|
4
|
6
|
1
|
1
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 27102 |
6 |
| Toray Industries, Inc. | 6652 |
3 |
| Sartorius Stedim Biotech GmbH | 774 |
3 |
| Toyobo Co., Ltd. | 2286 |
2 |
| LG Chem, Ltd. | 17205 |
1 |
| Centre National de La Recherche Scientifique | 9632 |
1 |
| Uop LLC | 4083 |
1 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
1 |
| Ecole Nationale Superieure de Chimie de Montpellier | 167 |
1 |
| Figaro Engineering Inc. | 45 |
1 |
| Fresenius Medical Care Deutschland GmbH | 2100 |
1 |
| Lotte Fine Chemical Co., Ltd. | 100 |
1 |
| New Cosmos Electric Co., Ltd. | 53 |
1 |
| Samsung Fine Chemicals Co., Ltd. | 181 |
1 |
| Universite de Montpellier | 920 |
1 |
| University of Calcutta | 29 |
1 |
| University Public Corporation Osaka | 184 |
1 |
| Other owners | 0 |