- 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: 695
10-year publication summary
|
55
|
35
|
27
|
34
|
57
|
37
|
56
|
46
|
56
|
40
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Versum Materials US, LLC | 650 |
26 |
| CMC Materials LLC | 249 |
26 |
| FUJIFILM Electronic Materials U.S.A., Inc. | 333 |
24 |
| Resonac Corporation | 2917 |
24 |
| Samsung Electronics Co., Ltd. | 147787 |
19 |
| Entegris, Inc. | 1898 |
18 |
| DONGWOO FINE-CHEM Co., Ltd. | 1364 |
16 |
| FUJIFILM Corporation | 29696 |
14 |
| Tokyo Electron Limited | 12979 |
13 |
| Fujimi Incorporated | 759 |
13 |
| BASF SE | 21017 |
12 |
| Mitsubishi Gas Chemical Company, Inc. | 3486 |
12 |
| Tokuyama Corporation | 1415 |
12 |
| Tokyo Ohka Kogyo Co., Ltd. | 1552 |
12 |
| Samsung Display Co., Ltd. | 35374 |
11 |
| ASM IP Holding B.V. | 2114 |
11 |
| Central Glass Company, Limited | 1273 |
11 |
| Applied Materials, Inc. | 18932 |
10 |
| Advanced Technology Materials, Inc. | 184 |
9 |
| DuPont Electronic Materials Holding, Inc. | 210 |
9 |
| Other owners | 393 |