- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 71/30 - Polyalkenyl halides
Patent holdings for IPC class B01D 71/30
Total number of patents in this class: 87
10-year publication summary
|
2
|
5
|
16
|
5
|
14
|
9
|
8
|
6
|
7
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dow Global Technologies LLC | 10156 |
13 |
| Lubrizol Advanced Materials, Inc. | 941 |
4 |
| Sekisui Chemical Co., Ltd. | 3308 |
4 |
| Toyobo Co., Ltd. | 2423 |
4 |
| BASF SE | 20432 |
3 |
| Tiangong University | 32 |
3 |
| The Regents of the University of California | 19517 |
2 |
| Toray Industries, Inc. | 6855 |
2 |
| Kaneka Corporation | 4498 |
2 |
| Asahi Kasei Kabushiki Kaisha | 2556 |
2 |
| Astom Corporation | 33 |
2 |
| Evoqua Water Technologies LLC | 904 |
2 |
| Korea Research Institute of Chemical Technology | 1337 |
2 |
| Pall Corporation | 345 |
2 |
| Porvair Filtration Group Limited | 15 |
2 |
| Tianjin Polytechnic University | 37 |
2 |
| Nissan Chemical Corporation | 1882 |
2 |
| 3m Innovative Properties Company | 17957 |
1 |
| FUJIFILM Corporation | 28805 |
1 |
| Cheil Industries Inc. | 911 |
1 |
| Other owners | 31 |