- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 71/02 - Inorganic material
Patent holdings for IPC class B01D 71/02
Total number of patents in this class: 2950
10-year publication summary
|
208
|
221
|
283
|
262
|
262
|
281
|
262
|
253
|
204
|
64
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NGK Insulators, Ltd. | 4589 |
236 |
| Dow Global Technologies LLC | 10147 |
62 |
| Georgia Tech Research Corporation | 2453 |
54 |
| Nitto Denko Corporation | 7879 |
45 |
| Mitsubishi Chemical Corporation | 4313 |
39 |
| Murata Manufacturing Co., Ltd. | 22355 |
35 |
| Toray Industries, Inc. | 6652 |
33 |
| National University of Singapore | 2228 |
33 |
| Hitachi Zosen Corporation | 609 |
28 |
| King Abdullah University of Science and Technology | 1703 |
27 |
| Lockheed Martin Corporation | 3406 |
23 |
| FUJIFILM Corporation | 27102 |
22 |
| Corning Incorporated | 9932 |
22 |
| Saudi Arabian Oil Company | 11322 |
21 |
| Dalian University of Technology | 1387 |
20 |
| ExxonMobil Research And Engineering Company | 2830 |
19 |
| Centre National de La Recherche Scientifique | 9632 |
19 |
| Korea University Research and Business Foundation | 2561 |
19 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3515 |
19 |
| Praxair Technology, Inc. | 1367 |
18 |
| Other owners | 2156 |