- All sections
- C - Chemistry; metallurgy
- C23C - Coating metallic material; coating material with metallic material; surface treatment of metallic material by diffusion into the surface, by chemical conversion or substitution; coating by vacuum evaporation, by sputtering, by ion implantation or by chemical vapour deposition, in general
- C23C 8/14 - Oxidising of ferrous surfaces
Patent holdings for IPC class C23C 8/14
Total number of patents in this class: 116
10-year publication summary
9
|
11
|
9
|
18
|
16
|
10
|
9
|
5
|
3
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
JFE Steel Corporation | 6067 |
13 |
Kubota Corporation | 3054 |
8 |
ArcelorMittal | 1887 |
7 |
Nippon Steel Corporation | 5649 |
7 |
Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
4 |
NIPPON STEEL Stainless Steel Corporation | 254 |
4 |
Emitec Gesellschaft für Emissionstechnologie mbH | 375 |
3 |
Encell Technology, Inc. | 56 |
3 |
Nippon Steel & Sumitomo Metal Corporation | 1990 |
3 |
NOVA Chemicals (International) S.A. | 717 |
3 |
UT-Battelle, LLC | 1333 |
3 |
ExxonMobil Research And Engineering Company | 2830 |
2 |
Sumitomo Electric Industries, Ltd. | 14131 |
2 |
Robert Bosch GmbH | 40953 |
2 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
2 |
citizen Watch Co., Ltd. | 1062 |
2 |
Cockerill Maintenance & Ingenierie SA | 82 |
2 |
Goertek Inc. | 2477 |
2 |
Hamilton Sundstrand Space Systems International, Inc. | 80 |
2 |
Iwatani Corporation | 110 |
2 |
Other owners | 40 |