- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 53/44 - Organic components
Patent holdings for IPC class B01D 53/44
Total number of patents in this class: 292
10-year publication summary
|
23
|
21
|
23
|
16
|
29
|
33
|
32
|
29
|
13
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toyobo Co., Ltd. | 2423 |
17 |
| Toyobo MC Corporation | 307 |
6 |
| EXP Services Inc. | 16 |
4 |
| G4 Insights Inc. | 15 |
4 |
| Kanken Techno Co., Ltd. | 58 |
4 |
| Gas Liquids Engineering Ltd. | 24 |
3 |
| Pyrogenesis Canada, Inc. | 71 |
3 |
| Uniboard Canada Inc. | 74 |
3 |
| Ushio Denki Kabushiki Kaisha | 1141 |
3 |
| Shenzhen Puremate Technology Co., Ltd. | 52 |
3 |
| Illinois Tool Works Inc. | 11399 |
2 |
| BASF SE | 20432 |
2 |
| International Business Machines Corporation | 60129 |
2 |
| Toyota Motor Corporation | 30455 |
2 |
| Mitsubishi Electric Corporation | 44851 |
2 |
| Tokyo Electron Limited | 12115 |
2 |
| Murata Manufacturing Co., Ltd. | 23702 |
2 |
| Air Liquide Advanced Technologies U.S. LLC | 90 |
2 |
| Aisan Kogyo Kabushiki Kaisha | 722 |
2 |
| Arbaflame Technology AS | 13 |
2 |
| Other owners | 222 |