- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment of raw materials
- C22B 1/16 - Sintering; Agglomerating
Patent holdings for IPC class C22B 1/16
Total number of patents in this class: 344
10-year publication summary
|
24
|
19
|
17
|
16
|
12
|
12
|
29
|
26
|
42
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 6557 |
86 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2906 |
36 |
| Nippon Steel Corporation | 6012 |
28 |
| POSCO | 2204 |
13 |
| Luossavaara-Kiirunavaara AB | 81 |
8 |
| Zhongye Changtian International Engineering Co., Ltd. | 75 |
7 |
| Outotec Oyj | 300 |
6 |
| Sumitomo Metal Mining Co., Ltd. | 1730 |
6 |
| Vale S.A. | 264 |
6 |
| Nu-Iron Technology, LLC | 39 |
5 |
| Nippon Steel & Sumitomo Metal Corporation | 1988 |
4 |
| Outotec (Finland) Oy | 489 |
4 |
| Freeport Minerals Corporation | 90 |
3 |
| Gestion Mcmarland Inc. | 3 |
3 |
| Northeastern University | 522 |
3 |
| Technological Resources Pty. Limited | 443 |
3 |
| Antofagasta Minerals S.A. | 13 |
2 |
| ArcelorMittal Bremen GmbH | 2 |
2 |
| Baoshan Iron & Steel Co., Ltd. | 897 |
2 |
| BHP Chile Inc. | 18 |
2 |
| Other owners | 115 |