- 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 1/18 - Acidic compositions for etching copper or alloys thereof
Patent holdings for IPC class C23F 1/18
Total number of patents in this class: 280
10-year publication summary
34
|
23
|
26
|
22
|
19
|
14
|
17
|
15
|
15
|
5
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Mitsubishi Gas Chemical Company, Inc. | 3188 |
27 |
MEC Company Ltd. | 76 |
22 |
Samsung Display Co., Ltd. | 30585 |
15 |
Atotech Deutschland GmbH | 586 |
15 |
Adeka Corporation | 1333 |
11 |
DONGWOO FINE-CHEM Co., Ltd. | 1163 |
11 |
Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8635 |
10 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
9 |
JX Nippon Mining & Metals Corporation | 1576 |
8 |
TCL China Star Optoelectronics Technology Co., Ltd. | 2368 |
6 |
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | 3454 |
5 |
Samsung Electronics Co., Ltd. | 131630 |
4 |
BASF SE | 19740 |
4 |
Dongjin Semichem Co., Ltd. | 438 |
4 |
Kateeva, Inc. | 376 |
4 |
Sumitomo Metal Mining Co., Ltd. | 1670 |
4 |
E. I. du Pont de Nemours and Company | 4345 |
3 |
KITZ Corporation | 197 |
3 |
Mitsubishi Paper Mills Limited | 246 |
3 |
Sigma Engineering AB | 4 |
3 |
Other owners | 109 |