- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 13/04 - Etching, surface-brightening or pickling compositions containing an inorganic acid
Patent holdings for IPC class C09K 13/04
Total number of patents in this class: 253
10-year publication summary
|
14
|
12
|
14
|
14
|
21
|
20
|
19
|
11
|
16
|
13
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Soulbrain Co., Ltd. | 262 |
18 |
| Samsung Electronics Co., Ltd. | 148077 |
11 |
| MacDermid Acumen, Inc. | 155 |
10 |
| Entegris, Inc. | 1901 |
9 |
| Samsung Display Co., Ltd. | 35545 |
8 |
| Corning Incorporated | 10336 |
7 |
| Versum Materials US, LLC | 653 |
7 |
| DONGWOO FINE-CHEM Co., Ltd. | 1369 |
6 |
| Tokyo Electron Limited | 13008 |
5 |
| Central Glass Company, Limited | 1273 |
5 |
| Kurita Water Industries Ltd. | 1211 |
5 |
| Mitsubishi Gas Chemical Company, Inc. | 3485 |
5 |
| Tokuyama Corporation | 1422 |
5 |
| Micron Technology, Inc. | 26279 |
4 |
| FUJIFILM Corporation | 29713 |
4 |
| Screen Holdings Co., Ltd. | 2897 |
4 |
| Tokyo Ohka Kogyo Co., Ltd. | 1551 |
4 |
| ATMI Taiwan Co., Ltd. | 11 |
3 |
| Ltcam Co., Ltd. | 6 |
3 |
| MacDermid Enthone Inc. | 241 |
3 |
| Other owners | 127 |