- 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 26/00 - Coating not provided for in groups
Patent holdings for IPC class C23C 26/00
Total number of patents in this class: 1471
10-year publication summary
|
108
|
108
|
85
|
78
|
95
|
78
|
78
|
77
|
72
|
40
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 6220 |
75 |
| JFE Steel Corporation | 6827 |
54 |
| Nihon Parkerizing Co., Ltd. | 287 |
35 |
| Nippon Steel & Sumitomo Metal Corporation | 1988 |
29 |
| IHI Corporation | 3422 |
28 |
| United Technologies Corporation | 2247 |
26 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2873 |
22 |
| Mitsubishi Electric Corporation | 45998 |
21 |
| Rtx Corporation | 9352 |
20 |
| The Furukawa Electric Co., Ltd. | 3645 |
17 |
| Nippon Paint Surf Chemicals Co., Ltd. | 94 |
15 |
| Sumitomo Electric Industries, Ltd. | 15443 |
13 |
| Showa Denko K.K. | 2246 |
12 |
| POSCO | 2187 |
12 |
| FUJIFILM Corporation | 29329 |
11 |
| Mitsui Mining & Smelting Co., Ltd. | 1478 |
11 |
| JX Nippon Mining & Metals Corporation | 1489 |
10 |
| POSCO Co., Ltd. | 1562 |
10 |
| General Electric Company | 13762 |
9 |
| Ibiden Co., Ltd. | 1702 |
9 |
| Other owners | 1032 |