- 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 1/613 - GasesLiquefied or solidified normally gaseous material
Patent holdings for IPC class C21D 1/613
Total number of patents in this class: 153
10-year publication summary
|
33
|
18
|
16
|
14
|
10
|
14
|
17
|
11
|
8
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 42689 |
6 |
| Fives Stein | 105 |
6 |
| Nippon Steel Corporation | 6238 |
5 |
| The Boeing Company | 20043 |
4 |
| ArcelorMittal | 2285 |
4 |
| Consolidated Engineering Company, Inc. | 27 |
4 |
| Voestalpine Stahl GmbH | 355 |
4 |
| GM Global Technology Operations LLC | 15042 |
3 |
| Aktiebolaget SKF | 2945 |
3 |
| ALD Vacuum Technologies GmbH | 139 |
3 |
| Cockerill Maintenance & Ingenierie SA | 80 |
3 |
| Gestamp HardTech AB | 107 |
3 |
| MacLean-Fogg Company | 101 |
3 |
| POSCO Co., Ltd. | 1568 |
3 |
| SECO / Warwick S.A. | 34 |
3 |
| GE Infrastructure Technology, LLC | 6222 |
3 |
| Black & Decker, Inc. | 2409 |
2 |
| Bayerische Motoren Werke Aktiengesellschaft | 14379 |
2 |
| Baoshan Iron & Steel Co., Ltd. | 964 |
2 |
| Ebner Industrieofenbau GmbH | 142 |
2 |
| Other owners | 85 |