- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 71/02 - Inorganic material
Patent holdings for IPC class B01D 71/02
Total number of patents in this class: 3452
10-year publication summary
|
283
|
262
|
262
|
283
|
265
|
258
|
218
|
258
|
242
|
125
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NGK Insulators, Ltd. | 5232 |
259 |
| Dow Global Technologies LLC | 10930 |
82 |
| Georgia Tech Research Corporation | 2942 |
58 |
| Nitto Denko Corporation | 8526 |
50 |
| Mitsubishi Chemical Corporation | 4721 |
44 |
| Murata Manufacturing Co., Ltd. | 25722 |
37 |
| King Fahd University of Petroleum and Minerals | 1569 |
36 |
| National University of Singapore | 2582 |
36 |
| Toray Industries, Inc. | 7096 |
33 |
| Saudi Arabian Oil Company | 14207 |
31 |
| VIA Separations, Inc. | 37 |
30 |
| Sumitomo Chemical Company, Limited | 8996 |
28 |
| Hitachi Zosen Corporation | 602 |
28 |
| King Abdullah University of Science and Technology | 1848 |
28 |
| Centre National de La Recherche Scientifique | 11016 |
27 |
| Massachusetts Institute of Technology | 10239 |
24 |
| FUJIFILM Corporation | 30512 |
23 |
| Lockheed Martin Corporation | 3260 |
22 |
| Corning Incorporated | 10500 |
22 |
| Korea University Research and Business Foundation | 3262 |
22 |
| Other owners | 2532 |