- 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 22/02 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using non-aqueous solutions
Patent holdings for IPC class C23C 22/02
Total number of patents in this class: 90
10-year publication summary
|
12
|
2
|
6
|
7
|
4
|
4
|
5
|
10
|
7
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Biomet 3i, LLC | 291 |
3 |
| NOK Corporation | 2294 |
3 |
| Queen's University at Kingston | 540 |
3 |
| 3m Innovative Properties Company | 17485 |
2 |
| The Boeing Company | 20145 |
2 |
| Agere S.r.l. | 4 |
2 |
| Atotech Deutschland GmbH | 524 |
2 |
| Entegris, Inc. | 2003 |
2 |
| Japan Aviation Electronics Industry, Limited | 1840 |
2 |
| Nippon Steel & Sumikin Stainless Steel Corporation | 158 |
2 |
| South China University of Technology | 1887 |
2 |
| Tokyo Ohka Kogyo Co., Ltd. | 1558 |
2 |
| SixRing Inc. | 178 |
2 |
| Hydromecanique et Frottement | 126 |
2 |
| BASF SE | 21294 |
1 |
| Centre National de La Recherche Scientifique | 10976 |
1 |
| FUJIFILM Corporation | 30434 |
1 |
| Applied Materials, Inc. | 20300 |
1 |
| Massachusetts Institute of Technology | 10228 |
1 |
| Sumitomo Chemical Company, Limited | 9019 |
1 |
| Other owners | 53 |