- All sections
- C - Chemistry; metallurgy
- C21D - Modifying the physical structure of ferrous metals; general devices for heat treatment of ferrous or non-ferrous metals or alloys; making metal malleable, e.g. by decarburisation or tempering
- C21D 1/68 - Temporary coatings or embedding materials applied before or during heat treatment
Patent holdings for IPC class C21D 1/68
Total number of patents in this class: 62
10-year publication summary
|
2
|
4
|
6
|
4
|
4
|
2
|
2
|
3
|
0
|
0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| POSCO | 2204 |
8 |
| POSCO Co., Ltd. | 1290 |
6 |
| Salzgitter Flachstahl GmbH | 156 |
3 |
| Tata Steel Nederland Technology BV | 144 |
3 |
| Ford Global Technologies, LLC | 20039 |
2 |
| Henkel AG & Co. KGaA | 10337 |
2 |
| Baoshan Iron & Steel Co., Ltd. | 888 |
2 |
| JFE Steel Corporation | 6527 |
2 |
| MEC International Co., Ltd. | 15 |
2 |
| Tata Steel UK Limited | 162 |
2 |
| Toyota School Foundation | 60 |
2 |
| Voestalpine Stahl GmbH | 340 |
2 |
| Dalian RINO Environment Engineering Science and Technology Co., Ltd. | 3 |
2 |
| Toyota Motor Corporation | 30292 |
1 |
| Hitachi Metals, Ltd. | 2026 |
1 |
| GM Global Technology Operations LLC | 14181 |
1 |
| ALCAN Rhenalu | 21 |
1 |
| ArcelorMittal | 2047 |
1 |
| ArcelorMittal France | 102 |
1 |
| ArcelorMittal Investigacion y Desarrollo SL | 209 |
1 |
| Other owners | 17 |