- All sections
- C - Chemistrymetallurgy
- C23C - Coating metallic materialcoating material with metallic materialsurface treatment of metallic material by diffusion into the surface, by chemical conversion or substitutioncoating 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: 119
10-year publication summary
|
11
|
9
|
15
|
15
|
10
|
9
|
6
|
4
|
2
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 6974 |
14 |
| Kubota Corporation | 4007 |
8 |
| ArcelorMittal | 2334 |
7 |
| Nippon Steel Corporation | 6396 |
7 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10956 |
4 |
| NIPPON STEEL Stainless Steel Corporation | 282 |
4 |
| Nippon Steel & Sumitomo Metal Corporation | 1987 |
3 |
| NOVA Chemicals (International) S.A. | 778 |
3 |
| UT-Battelle, LLC | 1468 |
3 |
| Sumitomo Electric Industries, Ltd. | 15659 |
2 |
| Robert Bosch GmbH | 42826 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 32105 |
2 |
| Emitec Gesellschaft für Emissionstechnologie mbH | 235 |
2 |
| citizen Watch Co., Ltd. | 1077 |
2 |
| Cockerill Maintenance & Ingenierie SA | 80 |
2 |
| Encell Technology, Inc. | 50 |
2 |
| Goertek Inc. | 2672 |
2 |
| Hamilton Sundstrand Space Systems International, Inc. | 103 |
2 |
| Iwatani Corporation | 116 |
2 |
| Nippon Steel & Sumikin Stainless Steel Corporation | 166 |
2 |
| Other owners | 44 |