- 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 8/08 - Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
Patent holdings for IPC class C23C 8/08
Total number of patents in this class: 89
10-year publication summary
7
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7
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9
|
5
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5
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9
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5
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6
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5
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0
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2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Showa Denko K.K. | 2539 |
4 |
Michelin Recherche et Technique S.A. | 2328 |
3 |
Air Water Inc. | 135 |
3 |
China University of Petroleum (East China) | 319 |
3 |
Swagelok Company | 325 |
3 |
Compagnie Generale des Etablissements Michelin | 4450 |
3 |
Apple Inc. | 50209 |
2 |
Sumitomo Electric Industries, Ltd. | 14131 |
2 |
Arcam AB | 204 |
2 |
Audi AG | 7153 |
2 |
Central Glass Company, Limited | 1244 |
2 |
Entegris, Inc. | 1736 |
2 |
Hyundai Steel Company | 310 |
2 |
Kanto Denka Kogyo Co., Ltd. | 137 |
2 |
BWT LLC, DBA Bluewater Thermal Solutions | 6 |
2 |
Atomic Energy of Canada Limited / Énergie Atomique du Canada limitée | 97 |
2 |
Schlumberger Technology Corporation | 9690 |
1 |
Siemens AG | 24990 |
1 |
Sony Corporation | 32931 |
1 |
Mitsubishi Heavy Industries, Ltd. | 8217 |
1 |
Other owners | 46 |