- 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: 32
10-year publication summary
|
0
|
1
|
1
|
4
|
6
|
1
|
1
|
1
|
2
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FUJIFILM Corporation | 30516 |
6 |
| Sartorius Stedim Biotech GmbH | 875 |
5 |
| Toray Industries, Inc. | 7111 |
3 |
| Centre National de La Recherche Scientifique | 11026 |
1 |
| Uop LLC | 4393 |
1 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11124 |
1 |
| Ecole Nationale Superieure de Chimie de Montpellier | 234 |
1 |
| Figaro Engineering Inc. | 40 |
1 |
| Fresenius Medical Care Deutschland GmbH | 2234 |
1 |
| Lotte Fine Chemical Co., Ltd. | 109 |
1 |
| National University of Singapore | 2586 |
1 |
| New Cosmos Electric Co., Ltd. | 70 |
1 |
| Samsung Fine Chemicals Co., Ltd. | 173 |
1 |
| Toyobo Co., Ltd. | 2539 |
1 |
| Universite de Montpellier | 1041 |
1 |
| University of Calcutta | 28 |
1 |
| University Public Corporation Osaka | 296 |
1 |
| Ora Graphene Audio Inc. | 15 |
1 |
| Toyobo MC Corporation | 534 |
1 |
| Nanoh2o Co., Ltd. | 60 |
1 |
| Other owners | 1 |