- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment of raw materials
- C22B 7/02 - Working-up flue dust
Patent holdings for IPC class C22B 7/02
Total number of patents in this class: 291
10-year publication summary
|
18
|
16
|
16
|
18
|
13
|
17
|
22
|
22
|
23
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Beijing University of Technology | 470 |
7 |
| Korea Zinc Co., Ltd. | 63 |
6 |
| Outotec (Finland) Oy | 489 |
6 |
| Metso Metals Oy | 223 |
6 |
| ArcelorMittal | 2052 |
5 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2905 |
5 |
| Battelle Memorial Institute | 2415 |
4 |
| Mitsubishi Materials Corporation | 2408 |
4 |
| Nippon Steel Corporation | 5991 |
4 |
| Paul Wurth S.A. | 408 |
4 |
| Centre National de La Recherche Scientifique | 10068 |
3 |
| Purdue Research Foundation | 3471 |
3 |
| ArcelorMittal Investigacion y Desarrollo SL | 209 |
3 |
| Chugai Ro Co., Ltd. | 123 |
3 |
| JFE Steel Corporation | 6538 |
3 |
| Kinotech Solar Energy Corporation | 13 |
3 |
| SGL Carbon SE | 386 |
3 |
| Taiheiyo Cement Corporation | 237 |
3 |
| Tohoku University | 2678 |
3 |
| Steel Dynamics Investments LLC | 3 |
3 |
| Other owners | 210 |