- 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: 238
10-year publication summary
|
16
|
23
|
21
|
18
|
29
|
13
|
20
|
15
|
14
|
15
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toray Industries, Inc. | 7006 |
26 |
| Nitto Denko Corporation | 8346 |
17 |
| King Fahd University of Petroleum and Minerals | 1311 |
10 |
| Toray Advanced Materials Korea Inc. | 264 |
7 |
| 3m Innovative Properties Company | 17762 |
6 |
| Repligen Corporation | 289 |
6 |
| FUJIFILM Corporation | 29713 |
4 |
| Dankook University Cheonan Campus Industry Academic Cooperation Foundation | 109 |
4 |
| BL Technologies, Inc. | 837 |
3 |
| Hokuetsu Kishu Paper Co., Ltd. | 13 |
3 |
| Zehnder Group International AG | 391 |
3 |
| BASF SE | 21036 |
2 |
| Kimberly-clark Worldwide, Inc. | 5430 |
2 |
| Sumitomo Chemical Company, Limited | 9092 |
2 |
| Dow Global Technologies LLC | 10459 |
2 |
| Case Western Reserve University | 1842 |
2 |
| FUJIFILM Manufacturing Europe B.V. | 259 |
2 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4008 |
2 |
| Mitsubishi Paper Mills Limited | 230 |
2 |
| Nikkiso Co., Ltd. | 789 |
2 |
| Other owners | 131 |