- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 13/00 - Etching, surface-brightening or pickling compositions
Patent holdings for IPC class C09K 13/00
Total number of patents in this class: 682
10-year publication summary
|
57
|
37
|
28
|
34
|
58
|
39
|
57
|
47
|
55
|
22
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| CMC Materials LLC | 247 |
26 |
| Versum Materials US, LLC | 641 |
24 |
| Resonac Corporation | 2702 |
24 |
| FUJIFILM Electronic Materials U.S.A., Inc. | 327 |
23 |
| Samsung Electronics Co., Ltd. | 144426 |
17 |
| Entegris, Inc. | 1858 |
17 |
| FUJIFILM Corporation | 29251 |
14 |
| DONGWOO FINE-CHEM Co., Ltd. | 1300 |
13 |
| Fujimi Incorporated | 736 |
13 |
| Mitsubishi Gas Chemical Company, Inc. | 3443 |
12 |
| Samsung Display Co., Ltd. | 34290 |
11 |
| BASF SE | 20803 |
11 |
| Tokyo Electron Limited | 12571 |
11 |
| ASM IP Holding B.V. | 2041 |
11 |
| Tokuyama Corporation | 1374 |
11 |
| Tokyo Ohka Kogyo Co., Ltd. | 1537 |
11 |
| Applied Materials, Inc. | 18433 |
10 |
| DuPont Electronic Materials Holding, Inc. | 198 |
10 |
| Advanced Technology Materials, Inc. | 195 |
9 |
| Central Glass Company, Limited | 1264 |
9 |
| Other owners | 395 |