- 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: 1673
10-year publication summary
|
109
|
69
|
46
|
28
|
21
|
22
|
13
|
17
|
18
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tokyo Electron Limited | 13336 |
238 |
| Applied Materials, Inc. | 19577 |
147 |
| Lam Research Corporation | 5429 |
132 |
| Hitachi High-Tech Corporation | 5564 |
33 |
| Samsung Electronics Co., Ltd. | 151017 |
26 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 46507 |
25 |
| Samsung Display Co., Ltd. | 37127 |
21 |
| Novellus Systems, Inc. | 466 |
20 |
| Kokusai Electric Corporation | 2149 |
20 |
| Micron Technology, Inc. | 27174 |
18 |
| Varian Semiconductor Equipment Associates, Inc. | 1214 |
15 |
| Kioxia Corporation | 10512 |
14 |
| Dai Nippon Printing Co., Ltd. | 4169 |
13 |
| United Microelectronics Corp. | 4369 |
11 |
| ASM IP Holding B.V. | 2216 |
11 |
| Screen Holdings Co., Ltd. | 3002 |
11 |
| The Regents of the University of California | 20355 |
10 |
| Texas Instruments Incorporated | 19555 |
10 |
| CMC Materials LLC | 246 |
10 |
| JFE Steel Corporation | 7163 |
8 |
| Other owners | 880 |