- All sections
- C - Chemistrymetallurgy
- C23F - Non-mechanical removal of metallic material from surfacesinhibiting corrosion of metallic materialinhibiting incrustation in generalmulti-step processes for surface treatment of metallic material involving at least one process provided for in class and at least one process covered by subclass or or class
- C23F 1/28 - Acidic compositions for etching iron group metals
Patent holdings for IPC class C23F 1/28
Total number of patents in this class: 197
10-year publication summary
|
9
|
30
|
11
|
16
|
21
|
17
|
9
|
21
|
5
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Gas Chemical Company, Inc. | 3663 |
16 |
| Element Six (UK) Limited | 238 |
14 |
| Dai Nippon Printing Co., Ltd. | 4298 |
8 |
| LG Innotek Co., Ltd. | 8678 |
7 |
| JFE Steel Corporation | 7704 |
7 |
| FUJIFILM Corporation | 30866 |
6 |
| Goertek Inc. | 2863 |
5 |
| Taisei Plas Co., Ltd. | 40 |
4 |
| Toppan Printing Co., Ltd. | 2074 |
4 |
| Tech Met, Inc. | 19 |
4 |
| Adeka Corporation | 1389 |
3 |
| IMEC VZW | 1846 |
3 |
| Treadstone Technologies, Inc. | 25 |
3 |
| Bytedance Inc. | 4445 |
3 |
| Rtx Corporation | 10264 |
3 |
| Honda Motor Co., Ltd. | 26702 |
2 |
| E. I. du Pont de Nemours and Company | 3425 |
2 |
| Texas Instruments Incorporated | 19641 |
2 |
| Hyundai Motor Company | 25253 |
2 |
| Kia Motors Corporation | 7713 |
2 |
| Other owners | 97 |