- 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 10/20 - Solid state diffusion of only metal elements or silicon into metallic material surfaces using liquids, e.g. salt baths, liquid suspensions only one element being diffused
Patent holdings for IPC class C23C 10/20
Total number of patents in this class: 66
10-year publication summary
|
10
|
4
|
2
|
7
|
5
|
4
|
5
|
3
|
3
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Toyo Kohan Co., Ltd. | 413 |
8 |
| Universite de Lorraine | 341 |
6 |
| Centre National de La Recherche Scientifique | 9632 |
5 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3515 |
5 |
| Praxair S.T. Technology, Inc. | 133 |
5 |
| Rtx Corporation | 8674 |
5 |
| MTU Aero Engines AG | 622 |
3 |
| M-m-morant-gmbh | 6 |
3 |
| MTU Aero Engines GmbH | 565 |
2 |
| Universite de Limoges | 191 |
2 |
| GE Infrastructure Technology, LLC | 5873 |
2 |
| National Institute for Aerospace Technology (inta) | 4 |
2 |
| Public Joint Stock Company "severstal" | 14 |
2 |
| General Electric Company | 18133 |
1 |
| TDK Corporation | 6306 |
1 |
| Shin-Etsu Chemical Co., Ltd. | 5132 |
1 |
| ArcelorMittal | 1887 |
1 |
| Beijing Zhong Ke San Huan Hi-Tech Co.,Ltd | 29 |
1 |
| Bodycote Warmebehandlung GmbH | 6 |
1 |
| Safran Aircraft Engines | 5739 |
1 |
| Other owners | 9 |