- All sections
- C - Chemistry; metallurgy
- C09K - Materials for applications not otherwise provided for; applications of materials not otherwise provided for
- C09K 13/02 - Etching, surface-brightening or pickling compositions containing an alkali metal hydroxide
Patent holdings for IPC class C09K 13/02
Total number of patents in this class: 108
10-year publication summary
|
13
|
10
|
7
|
5
|
7
|
16
|
5
|
7
|
6
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| DONGWOO FINE-CHEM Co., Ltd. | 1163 |
10 |
| Versum Materials US, LLC | 591 |
9 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 36809 |
6 |
| FUJIFILM Electronic Materials U.S.A., Inc. | 270 |
3 |
| Mitsubishi Paper Mills Limited | 246 |
3 |
| Rohm and Haas Electronic Materials CMP Holdings, Inc. | 309 |
3 |
| SCHOTT Solar AG | 48 |
3 |
| Samsung Electronics Co., Ltd. | 131630 |
2 |
| 3m Innovative Properties Company | 18406 |
2 |
| Merck Patent GmbH | 5909 |
2 |
| Tokyo Electron Limited | 11599 |
2 |
| Shin-Etsu Chemical Co., Ltd. | 5132 |
2 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
2 |
| ASM IP Holding B.V. | 1715 |
2 |
| Atotech Deutschland GmbH | 586 |
2 |
| Entegris, Inc. | 1736 |
2 |
| GP Solar GmbH | 13 |
2 |
| National University of Singapore | 2228 |
2 |
| SCHOTT AG | 1675 |
2 |
| Technic France | 10 |
2 |
| Other owners | 45 |