- 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: 3252
10-year publication summary
|
210
|
261
|
247
|
250
|
273
|
257
|
250
|
203
|
240
|
145
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NGK Insulators, Ltd. | 4995 |
250 |
| Dow Global Technologies LLC | 10394 |
73 |
| Georgia Tech Research Corporation | 2758 |
54 |
| Nitto Denko Corporation | 8273 |
46 |
| Mitsubishi Chemical Corporation | 4535 |
43 |
| Murata Manufacturing Co., Ltd. | 24684 |
37 |
| National University of Singapore | 2460 |
36 |
| Toray Industries, Inc. | 6974 |
35 |
| Hitachi Zosen Corporation | 615 |
28 |
| King Abdullah University of Science and Technology | 1796 |
27 |
| Saudi Arabian Oil Company | 13316 |
27 |
| King Fahd University of Petroleum and Minerals | 1259 |
25 |
| Centre National de La Recherche Scientifique | 10498 |
24 |
| Massachusetts Institute of Technology | 10093 |
23 |
| Sumitomo Chemical Company, Limited | 9051 |
23 |
| FUJIFILM Corporation | 29506 |
22 |
| Lockheed Martin Corporation | 3272 |
22 |
| Corning Incorporated | 10294 |
22 |
| Korea University Research and Business Foundation | 3010 |
22 |
| VIA Separations, Inc. | 27 |
22 |
| Other owners | 2391 |