- 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: 3182
10-year publication summary
|
221
|
283
|
262
|
262
|
283
|
265
|
259
|
210
|
241
|
69
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NGK Insulators, Ltd. | 4853 |
252 |
| Dow Global Technologies LLC | 10247 |
70 |
| Georgia Tech Research Corporation | 2679 |
54 |
| Nitto Denko Corporation | 8146 |
45 |
| Mitsubishi Chemical Corporation | 4465 |
43 |
| Murata Manufacturing Co., Ltd. | 24137 |
37 |
| National University of Singapore | 2399 |
36 |
| Toray Industries, Inc. | 6840 |
35 |
| Hitachi Zosen Corporation | 621 |
28 |
| King Abdullah University of Science and Technology | 1763 |
27 |
| Saudi Arabian Oil Company | 12683 |
26 |
| Centre National de La Recherche Scientifique | 10202 |
24 |
| Sumitomo Chemical Company, Limited | 8986 |
23 |
| King Fahd University of Petroleum and Minerals | 1108 |
23 |
| FUJIFILM Corporation | 29082 |
22 |
| Lockheed Martin Corporation | 3277 |
22 |
| Corning Incorporated | 10146 |
22 |
| Dalian University of Technology | 1487 |
21 |
| Korea University Research and Business Foundation | 2887 |
21 |
| Massachusetts Institute of Technology | 9942 |
20 |
| Other owners | 2331 |