- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 21/465 - Chemical or electrical treatment, e.g. electrolytic etching
Patent holdings for IPC class H01L 21/465
Total number of patents in this class: 282
10-year publication summary
|
33
|
27
|
28
|
27
|
23
|
13
|
19
|
7
|
6
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Semiconductor Energy Laboratory Co., Ltd. | 11649 |
57 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 47015 |
22 |
| Lam Research Corporation | 5494 |
17 |
| Samsung Display Co., Ltd. | 37602 |
12 |
| Boe Technology Group Co., Ltd. | 42839 |
7 |
| LAM Research AG | 194 |
6 |
| Magnolia White Corporation | 5522 |
6 |
| Sharp Corporation | 10432 |
5 |
| Applied Materials, Inc. | 19908 |
5 |
| Tokyo Electron Limited | 13455 |
5 |
| Flosfia Inc. | 239 |
5 |
| Intel Corporation | 46665 |
4 |
| Magnolia Blue Corporation | 1162 |
4 |
| Samsung Electronics Co., Ltd. | 152914 |
3 |
| LG Display Co., Ltd. | 14221 |
3 |
| The Regents of the University of California | 20502 |
3 |
| Sumitomo Electric Industries, Ltd. | 16050 |
3 |
| Infineon Technologies AG | 8374 |
3 |
| National Taiwan University | 1295 |
3 |
| Intermolecular, Inc. | 281 |
3 |
| Other owners | 106 |