- 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 26/00 - Coating not provided for in groups
Patent holdings for IPC class C23C 26/00
Total number of patents in this class: 1440
10-year publication summary
130
|
108
|
108
|
84
|
79
|
95
|
76
|
73
|
76
|
27
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Nippon Steel Corporation | 5649 |
58 |
JFE Steel Corporation | 6067 |
51 |
Nihon Parkerizing Co., Ltd. | 274 |
33 |
IHI Corporation | 3268 |
30 |
Nippon Steel & Sumitomo Metal Corporation | 1990 |
29 |
United Technologies Corporation | 2328 |
26 |
Mitsubishi Electric Corporation | 43934 |
24 |
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
20 |
Rtx Corporation | 8674 |
17 |
The Furukawa Electric Co., Ltd. | 3486 |
16 |
Sumitomo Electric Industries, Ltd. | 14131 |
14 |
Showa Denko K.K. | 2539 |
12 |
POSCO | 2222 |
12 |
Nippon Paint Surf Chemicals Co., Ltd. | 82 |
11 |
Vallourec Oil and Gas France | 450 |
11 |
General Electric Company | 18133 |
10 |
JX Nippon Mining & Metals Corporation | 1576 |
10 |
Mitsui Mining & Smelting Co., Ltd. | 1373 |
10 |
SRFC Bio, Inc. | 47 |
10 |
Nisshin Steel Co., Ltd. | 401 |
9 |
Other owners | 1027 |