- 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: 3368
10-year publication summary
|
261
|
247
|
250
|
273
|
258
|
249
|
206
|
241
|
229
|
51
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NGK Insulators, Ltd. | 5199 |
259 |
| Dow Global Technologies LLC | 10770 |
82 |
| Georgia Tech Research Corporation | 2903 |
56 |
| Nitto Denko Corporation | 8465 |
50 |
| Mitsubishi Chemical Corporation | 4676 |
44 |
| Murata Manufacturing Co., Ltd. | 25514 |
37 |
| National University of Singapore | 2552 |
36 |
| Toray Industries, Inc. | 7038 |
33 |
| King Fahd University of Petroleum and Minerals | 1483 |
33 |
| Saudi Arabian Oil Company | 13949 |
29 |
| Hitachi Zosen Corporation | 608 |
28 |
| Centre National de La Recherche Scientifique | 10865 |
27 |
| King Abdullah University of Science and Technology | 1835 |
27 |
| Sumitomo Chemical Company, Limited | 9045 |
26 |
| VIA Separations, Inc. | 30 |
25 |
| FUJIFILM Corporation | 30244 |
23 |
| Massachusetts Institute of Technology | 10196 |
23 |
| Lockheed Martin Corporation | 3279 |
22 |
| Corning Incorporated | 10422 |
22 |
| Korea University Research and Business Foundation | 3170 |
22 |
| Other owners | 2464 |