- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 29/37 - Self-supporting filtering elements open-ended
Patent holdings for IPC class B01D 29/37
Total number of patents in this class: 35
10-year publication summary
|
4
|
1
|
1
|
2
|
6
|
0
|
1
|
0
|
0
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tsukishima Kikai Co., Ltd. | 113 |
6 |
| Mitsubishi Heavy Industries, Ltd. | 8725 |
3 |
| Metawater Co., Ltd. | 194 |
3 |
| Progressive International Corporation | 250 |
3 |
| Amukon Kabushiki Kaisha | 11 |
2 |
| Mitsubishi Gas Chemical Company, Inc. | 3465 |
2 |
| NEC Corporation | 35687 |
1 |
| Pratt & Whitney Canada Corp. | 4757 |
1 |
| Sumitomo Chemical Company, Limited | 9047 |
1 |
| Mitsubishi Chemical Corporation | 4514 |
1 |
| Kaneka Corporation | 4525 |
1 |
| Aisin AI Co., Ltd. | 121 |
1 |
| Cleanflow AB | 3 |
1 |
| Dowa Electronics Materials Co., Ltd. | 632 |
1 |
| Metso Paper, Inc. | 422 |
1 |
| Mizushima Aroma Company, Ltd. | 5 |
1 |
| Osaka University | 3374 |
1 |
| Swing Corporation | 30 |
1 |
| Tokuyama Corporation | 1392 |
1 |
| Toyobo Co., Ltd. | 2499 |
1 |
| Other owners | 2 |