- 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: 39
10-year publication summary
|
4
|
5
|
6
|
2
|
5
|
2
|
2
|
6
|
1
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Daicel Corporation | 2526 |
8 |
| Toray Industries, Inc. | 7111 |
7 |
| Sartorius Stedim Biotech GmbH | 875 |
3 |
| Konica Minolta, Inc. | 9125 |
2 |
| Hangzhou Cobetter Filtration Equipment Co., Ltd | 32 |
2 |
| Nitto Denko Corporation | 8540 |
1 |
| Daicen Membrane-systems Ltd. | 24 |
1 |
| Dalian University of Technology | 1594 |
1 |
| KB Seiren, Ltd. | 102 |
1 |
| Metrohm AG | 35 |
1 |
| Nanopareil, LLC | 13 |
1 |
| National University Corporation Kobe University | 571 |
1 |
| Renaissance Energy Research Corporation | 63 |
1 |
| Teijin Limited | 1285 |
1 |
| Toyobo Co., Ltd. | 2539 |
1 |
| Whatman GmbH | 6 |
1 |
| KC Harvey Environmental, LLC | 2 |
1 |
| Nissan Chemical Corporation | 2229 |
1 |
| FTS, LLC | 9 |
1 |
| Global Life Sciences Solutions Germany GmbH | 77 |
1 |
| Other owners | 2 |