- All sections
- C - Chemistry; metallurgy
- C23F - Non-mechanical removal of metallic material from surfaces; inhibiting corrosion of metallic material; inhibiting incrustation in general; multi-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: 183
10-year publication summary
|
20
|
9
|
30
|
11
|
16
|
21
|
16
|
8
|
20
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Element Six (UK) Limited | 203 |
14 |
| Mitsubishi Gas Chemical Company, Inc. | 3345 |
11 |
| LG Innotek Co., Ltd. | 7225 |
7 |
| Dai Nippon Printing Co., Ltd. | 3973 |
7 |
| JFE Steel Corporation | 6549 |
7 |
| FUJIFILM Corporation | 28555 |
6 |
| Goertek Inc. | 2588 |
5 |
| Taisei Plas Co., Ltd. | 47 |
4 |
| Toppan Printing Co., Ltd. | 2159 |
4 |
| Tech Met, Inc. | 16 |
4 |
| Adeka Corporation | 1341 |
3 |
| IMEC VZW | 1521 |
3 |
| Treadstone Technologies, Inc. | 23 |
3 |
| Rtx Corporation | 9094 |
3 |
| Honda Motor Co., Ltd. | 24868 |
2 |
| E. I. du Pont de Nemours and Company | 4251 |
2 |
| Texas Instruments Incorporated | 19418 |
2 |
| Hyundai Motor Company | 20442 |
2 |
| Kia Motors Corporation | 7777 |
2 |
| de Nora Permelec Ltd | 155 |
2 |
| Other owners | 90 |