- All sections
- C - Chemistrymetallurgy
- C23F - Non-mechanical removal of metallic material from surfacesinhibiting corrosion of metallic materialinhibiting incrustation in generalmulti-step processes for surface treatment of metallic material involving at least one process provided for in class and at least one process covered by subclass or or class
- C23F 1/00 - Etching metallic material by chemical means
Patent holdings for IPC class C23F 1/00
Total number of patents in this class: 1724
10-year publication summary
|
147
|
109
|
70
|
46
|
29
|
21
|
21
|
13
|
17
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tokyo Electron Limited | 12712 |
246 |
| Applied Materials, Inc. | 18621 |
156 |
| Lam Research Corporation | 5239 |
137 |
| Hitachi High-Tech Corporation | 5310 |
33 |
| Samsung Electronics Co., Ltd. | 146092 |
26 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 42704 |
25 |
| Samsung Display Co., Ltd. | 34696 |
23 |
| Novellus Systems, Inc. | 483 |
22 |
| Kokusai Electric Corporation | 2018 |
20 |
| Micron Technology, Inc. | 26262 |
19 |
| Varian Semiconductor Equipment Associates, Inc. | 1231 |
15 |
| Kioxia Corporation | 10290 |
14 |
| ASM IP Holding B.V. | 2077 |
13 |
| Dai Nippon Printing Co., Ltd. | 4082 |
12 |
| Screen Holdings Co., Ltd. | 2814 |
12 |
| United Microelectronics Corp. | 4268 |
11 |
| CMC Materials LLC | 246 |
11 |
| The Regents of the University of California | 19918 |
10 |
| Texas Instruments Incorporated | 19470 |
10 |
| Jusung Engineering Co., Ltd. | 442 |
8 |
| Other owners | 901 |