- 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 4/06 - Metallic material
Patent holdings for IPC class C23C 4/06
Total number of patents in this class: 701
10-year publication summary
67
|
88
|
71
|
49
|
56
|
42
|
39
|
30
|
38
|
8
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Tocalo Co., Ltd. | 94 |
21 |
Rtx Corporation | 8674 |
19 |
Federal-Mogul Burscheid GmbH | 284 |
16 |
Fujimi Incorporated | 676 |
13 |
Nippon Steel Corporation | 5649 |
13 |
Oerlikon Metco (US) Inc. | 202 |
11 |
Praxair S.T. Technology, Inc. | 133 |
10 |
ULVAC, Inc. | 1448 |
10 |
General Electric Company | 18133 |
9 |
Siemens AG | 24990 |
9 |
Nippon Steel & Sumikin Hardfacing Co., Ltd. | 22 |
8 |
GE Infrastructure Technology, LLC | 5873 |
8 |
Mitsubishi Heavy Industries, Ltd. | 8217 |
6 |
Westinghouse Electric Company LLC | 1087 |
6 |
Caterpillar Inc. | 8877 |
5 |
MAHLE International GmbH | 2670 |
5 |
Persimmon Technologies, Corp. | 140 |
5 |
Tenneco Inc | 274 |
5 |
Hamilton Sundstrand Corporation | 4525 |
4 |
Chevron U.S.A. Inc. | 3774 |
4 |
Other owners | 514 |