- All sections
- C - Chemistrymetallurgy
- C21D - Modifying the physical structure of ferrous metalsgeneral devices for heat treatment of ferrous or non-ferrous metals or alloysmaking metal malleable, e.g. by decarburisation or tempering
- C21D 1/08 - Surface hardening with flames
Patent holdings for IPC class C21D 1/08
Total number of patents in this class: 12
10-year publication summary
|
2
|
1
|
3
|
0
|
3
|
0
|
0
|
1
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AGA AB | 5 |
1 |
| ArcelorMittal Investigacion y Desarrollo SL | 208 |
1 |
| Autotech Engineering A.I.E. | 39 |
1 |
| JFE Steel Corporation | 7378 |
1 |
| Micro Motion, Inc. | 1018 |
1 |
| Nivarox-FAR S.A. | 282 |
1 |
| POSCO | 2153 |
1 |
| Yanshan University | 157 |
1 |
| American Manufacturing Innovators, Inc. | 1 |
1 |
| Patentus Spółka Akcyjna | 2 |
1 |
| Oregon Tool, Inc. | 285 |
1 |
| Proterial, Ltd. | 928 |
1 |
| Other owners | 0 |