- 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 1/02 - Local etching
Patent holdings for IPC class C23F 1/02
Total number of patents in this class: 542
10-year publication summary
|
53
|
60
|
54
|
42
|
44
|
40
|
28
|
30
|
20
|
18
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dai Nippon Printing Co., Ltd. | 4298 |
29 |
| Samsung Display Co., Ltd. | 39369 |
21 |
| 3m Innovative Properties Company | 17463 |
19 |
| Tokyo Electron Limited | 14049 |
15 |
| Element Six (UK) Limited | 238 |
14 |
| Applied Materials, Inc. | 20694 |
11 |
| Toppan Printing Co., Ltd. | 2074 |
10 |
| LG Innotek Co., Ltd. | 8678 |
9 |
| Kateeva, Inc. | 397 |
9 |
| Samsung Electronics Co., Ltd. | 159978 |
8 |
| Lam Research Corporation | 5747 |
7 |
| JX Nippon Mining & Metals Corporation | 1451 |
7 |
| Tech Met, Inc. | 19 |
6 |
| Covidien LP | 10711 |
5 |
| Hewlett-Packard Development Company, L.P. | 25087 |
5 |
| Atotech Deutschland GmbH | 522 |
5 |
| Mitsubishi Gas Chemical Company, Inc. | 3663 |
5 |
| Toppan Inc. | 762 |
5 |
| LG Chem, Ltd. | 18005 |
4 |
| International Business Machines Corporation | 62897 |
4 |
| Other owners | 344 |