- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 71/14 - Esters of organic acids
Patent holdings for IPC class B01D 71/14
Total number of patents in this class: 36
10-year publication summary
|
3
|
4
|
4
|
6
|
2
|
5
|
2
|
2
|
6
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Daicel Corporation | 2398 |
8 |
| Toray Industries, Inc. | 7004 |
7 |
| Sartorius Stedim Biotech GmbH | 848 |
2 |
| Hangzhou Cobetter Filtration Equipment Co., Ltd | 31 |
2 |
| Konica Minolta, Inc. | 8853 |
1 |
| Daicen Membrane-systems Ltd. | 23 |
1 |
| Dalian University of Technology | 1538 |
1 |
| KB Seiren, Ltd. | 98 |
1 |
| Metrohm AG | 36 |
1 |
| Nanopareil, LLC | 14 |
1 |
| National University Corporation Kobe University | 534 |
1 |
| Renaissance Energy Research Corporation | 63 |
1 |
| Teijin Limited | 1258 |
1 |
| Toyobo Co., Ltd. | 2466 |
1 |
| Whatman GmbH | 6 |
1 |
| KC Harvey Environmental, LLC | 2 |
1 |
| Nissan Chemical Corporation | 2093 |
1 |
| Fluid Technology Solutions (fts), Inc. | 20 |
1 |
| Global Life Sciences Solutions Germany GmbH | 78 |
1 |
| Union Korea Life Sciences Inc. | 6 |
1 |
| Other owners | 1 |