- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 13/06 - Etching, surface-brightening or pickling compositions containing an inorganic acid with organic material
Patent holdings for IPC class C09K 13/06
Total number of patents in this class: 494
10-year publication summary
|
22
|
26
|
46
|
66
|
57
|
46
|
38
|
27
|
37
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Entegris, Inc. | 1957 |
40 |
| Soulbrain Co., Ltd. | 271 |
32 |
| Samsung Display Co., Ltd. | 37314 |
23 |
| FUJIFILM Electronic Materials U.S.A., Inc. | 341 |
23 |
| Samsung Electronics Co., Ltd. | 151726 |
22 |
| FUJIFILM Corporation | 30063 |
22 |
| Versum Materials US, LLC | 659 |
22 |
| DONGWOO FINE-CHEM Co., Ltd. | 1400 |
15 |
| Enf Technology Co., Ltd. | 54 |
14 |
| CMC Materials LLC | 246 |
13 |
| Samsung SDI Co., Ltd. | 9317 |
12 |
| Resonac Corporation | 3115 |
12 |
| SK Innovation Co., Ltd. | 1403 |
9 |
| DuPont Electronic Materials Holding, Inc. | 207 |
9 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 46661 |
8 |
| Fujimi Incorporated | 768 |
7 |
| Mitsubishi Gas Chemical Company, Inc. | 3552 |
7 |
| Tokyo Ohka Kogyo Co., Ltd. | 1548 |
7 |
| Tokyo Electron Limited | 13410 |
6 |
| SK Hynix Inc. | 11940 |
6 |
| Other owners | 185 |