- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 21/3063 - Electrolytic etching
Patent holdings for IPC class H01L 21/3063
Total number of patents in this class: 190
10-year publication summary
|
11
|
15
|
8
|
20
|
19
|
16
|
8
|
6
|
11
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Taiwan Semiconductor Manufacturing Company, Ltd. | 46161 |
14 |
| Sumitomo Chemical Company, Limited | 9109 |
9 |
| The Regents of the University of California | 20289 |
7 |
| Infineon Technologies AG | 8287 |
7 |
| Screen Holdings Co., Ltd. | 2932 |
7 |
| Infineon Technologies Austria AG | 2217 |
6 |
| Tokyo Electron Limited | 13136 |
6 |
| Sciocs Company Limited | 43 |
6 |
| IQE plc. | 115 |
5 |
| Institut fur Solarenergieforschung GmbH | 32 |
4 |
| MicroLink Devices, Inc. | 38 |
4 |
| Yale University | 2444 |
4 |
| Samsung Display Co., Ltd. | 36265 |
3 |
| International Business Machines Corporation | 61721 |
3 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10954 |
3 |
| The Board of Trustees of the University of Illinois | 2723 |
3 |
| STMicroelectronics (Crolles 2) SAS | 646 |
3 |
| Qualcomm Incorporated | 87585 |
2 |
| Applied Materials, Inc. | 19248 |
2 |
| STMicroelectronics S.r.l. | 3439 |
2 |
| Other owners | 90 |