- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 71/48 - Polyesters
Patent holdings for IPC class B01D 71/48
Total number of patents in this class: 226
10-year publication summary
|
16
|
24
|
21
|
18
|
29
|
13
|
20
|
15
|
14
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toray Industries, Inc. | 6891 |
26 |
| Nitto Denko Corporation | 8182 |
17 |
| Toray Advanced Materials Korea Inc. | 256 |
7 |
| 3m Innovative Properties Company | 17849 |
6 |
| King Fahd University of Petroleum and Minerals | 1145 |
6 |
| Repligen Corporation | 283 |
6 |
| FUJIFILM Corporation | 29228 |
4 |
| Dankook University Cheonan Campus Industry Academic Cooperation Foundation | 103 |
4 |
| BL Technologies, Inc. | 831 |
3 |
| Hokuetsu Kishu Paper Co., Ltd. | 13 |
3 |
| Zehnder Group International AG | 390 |
3 |
| BASF SE | 20777 |
2 |
| Kimberly-clark Worldwide, Inc. | 5507 |
2 |
| Sumitomo Chemical Company, Limited | 9009 |
2 |
| Dow Global Technologies LLC | 10354 |
2 |
| Case Western Reserve University | 1799 |
2 |
| FUJIFILM Manufacturing Europe B.V. | 268 |
2 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3932 |
2 |
| Mitsubishi Paper Mills Limited | 233 |
2 |
| Nikkiso Co., Ltd. | 770 |
2 |
| Other owners | 123 |