- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 53/28 - Selection of materials for use as drying agents
Patent holdings for IPC class B01D 53/28
Total number of patents in this class: 600
10-year publication summary
|
40
|
29
|
50
|
49
|
42
|
44
|
52
|
45
|
55
|
33
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sharp Kabushiki Kaisha | 18525 |
31 |
| Dow Global Technologies LLC | 10968 |
14 |
| Sharp Corporation | 10569 |
13 |
| Z124 | 72 |
13 |
| The School Corporation Kansai University | 178 |
12 |
| Shanghai Hengyuan Macromolecular Materials Co.,Ltd. | 19 |
12 |
| Daikin Industries, Ltd. | 10511 |
9 |
| King Abdullah University of Science and Technology | 1858 |
8 |
| The Regents of the University of California | 20790 |
7 |
| Japan Exlan Company Limited | 55 |
7 |
| SAES Getters S.p.A. | 326 |
7 |
| Saudi Arabian Oil Company | 14275 |
7 |
| W.M. Barr & Company, Inc. | 237 |
7 |
| FUJIFILM Corporation | 30543 |
6 |
| Sumitomo Chemical Company, Limited | 8968 |
6 |
| Dynic Corporation | 16 |
6 |
| National University of Singapore | 2586 |
6 |
| Toyobo MC Corporation | 534 |
6 |
| BASF SE | 21318 |
5 |
| Panasonic Intellectual Property Management Co., Ltd. | 34080 |
5 |
| Other owners | 413 |