- 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: 1622
10-year publication summary
|
109
|
70
|
46
|
29
|
21
|
22
|
13
|
18
|
18
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tokyo Electron Limited | 13796 |
233 |
| Applied Materials, Inc. | 20363 |
135 |
| Lam Research Corporation | 5621 |
126 |
| Hitachi High-Tech Corporation | 5819 |
33 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 48248 |
26 |
| Samsung Electronics Co., Ltd. | 157557 |
25 |
| Samsung Display Co., Ltd. | 38570 |
21 |
| Kokusai Electric Corporation | 2215 |
20 |
| Novellus Systems, Inc. | 452 |
19 |
| Micron Technology, Inc. | 27626 |
17 |
| Varian Semiconductor Equipment Associates, Inc. | 1187 |
15 |
| Kioxia Corporation | 10805 |
14 |
| Dai Nippon Printing Co., Ltd. | 4237 |
13 |
| United Microelectronics Corp. | 4492 |
11 |
| ASM IP Holding B.V. | 2387 |
11 |
| Screen Holdings Co., Ltd. | 3148 |
11 |
| The Regents of the University of California | 20720 |
10 |
| CMC Materials LLC | 244 |
10 |
| Texas Instruments Incorporated | 19663 |
9 |
| JFE Steel Corporation | 7508 |
8 |
| Other owners | 855 |