- 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: 333
10-year publication summary
31
|
24
|
19
|
17
|
16
|
12
|
12
|
28
|
25
|
19
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
JFE Steel Corporation | 6067 |
78 |
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
35 |
Nippon Steel Corporation | 5649 |
25 |
POSCO | 2222 |
16 |
Luossavaara-Kiirunavaara AB | 78 |
7 |
Outotec Oyj | 318 |
7 |
Sumitomo Metal Mining Co., Ltd. | 1670 |
7 |
Vale S.A. | 262 |
6 |
Zhongye Changtian International Engineering Co., Ltd. | 73 |
6 |
Nu-Iron Technology, LLC | 44 |
5 |
Nippon Steel & Sumitomo Metal Corporation | 1990 |
4 |
Outotec (Finland) Oy | 491 |
4 |
Gestion Mcmarland Inc. | 3 |
3 |
Northeastern University | 493 |
3 |
Technological Resources Pty. Limited | 444 |
3 |
Universidad Tecnica Federico Santa Maria | 125 |
3 |
Antofagasta Minerals S.A. | 13 |
2 |
ArcelorMittal Bremen GmbH | 2 |
2 |
Baoshan Iron & Steel Co., Ltd. | 832 |
2 |
BHP Chile Inc. | 18 |
2 |
Other owners | 113 |