- All sections
- B - Performing operations; transporting
- 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: 502
10-year publication summary
|
38
|
32
|
40
|
29
|
50
|
49
|
42
|
44
|
50
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sharp Kabushiki Kaisha | 18957 |
24 |
| Dow Global Technologies LLC | 10147 |
14 |
| Z124 | 352 |
13 |
| The School Corporation Kansai University | 150 |
12 |
| Shanghai Hengyuan Macromolecular Materials Co.,Ltd. | 19 |
12 |
| Sharp Corporation | 10015 |
10 |
| King Abdullah University of Science and Technology | 1703 |
8 |
| SAES Getters S.p.A. | 338 |
8 |
| Daikin Industries, Ltd. | 9495 |
7 |
| Japan Exlan Company Limited | 60 |
7 |
| The Regents of the University of California | 18943 |
6 |
| FUJIFILM Corporation | 27102 |
6 |
| Dynic Corporation | 15 |
6 |
| W.M. Barr & Company, Inc. | 174 |
6 |
| BASF SE | 19740 |
5 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
5 |
| Sumitomo Chemical Company, Limited | 8808 |
5 |
| National Institute of Advanced Industrial Science and Technology | 3677 |
5 |
| National University of Singapore | 2228 |
5 |
| Ube Material Industries, Ltd. | 99 |
5 |
| Other owners | 333 |