- All sections
- C - Chemistry; metallurgy
- C09K - Materials for applications not otherwise provided for; applications 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: 243
10-year publication summary
|
21
|
14
|
12
|
14
|
14
|
22
|
18
|
16
|
9
|
10
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Soulbrain Co., Ltd. | 196 |
18 |
| Samsung Electronics Co., Ltd. | 131630 |
11 |
| MacDermid Acumen, Inc. | 162 |
10 |
| Corning Incorporated | 9932 |
8 |
| Versum Materials US, LLC | 591 |
8 |
| Samsung Display Co., Ltd. | 30585 |
7 |
| Entegris, Inc. | 1736 |
7 |
| DONGWOO FINE-CHEM Co., Ltd. | 1163 |
6 |
| Tokyo Electron Limited | 11599 |
5 |
| Kurita Water Industries Ltd. | 1110 |
5 |
| Mitsubishi Gas Chemical Company, Inc. | 3188 |
5 |
| Micron Technology, Inc. | 24960 |
4 |
| FUJIFILM Corporation | 27102 |
4 |
| Tokuyama Corporation | 1248 |
4 |
| Tokyo Ohka Kogyo Co., Ltd. | 1481 |
4 |
| 3m Innovative Properties Company | 18406 |
3 |
| ATMI Taiwan Co., Ltd. | 11 |
3 |
| Fujimi Incorporated | 676 |
3 |
| Ltcam Co., Ltd. | 6 |
3 |
| Nippon Sheet Glass Company, Limited | 992 |
3 |
| Other owners | 122 |