- All sections
- C - Chemistrymetallurgy
- C25F - Processes for the electrolytic removal of materials from objectsapparatus therefor
- C25F 3/12 - Etching of semiconducting materials
Patent holdings for IPC class C25F 3/12
Total number of patents in this class: 134
10-year publication summary
|
15
|
9
|
10
|
12
|
10
|
9
|
6
|
9
|
13
|
5
|
| 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. | 42704 |
6 |
| Ecole Polytechnique Federale de Lausanne (epfl) | 1535 |
5 |
| Roche Sequencing Solutions, Inc. | 648 |
5 |
| RENA Technologies GmbH | 40 |
5 |
| The Regents of the University of California | 19918 |
4 |
| Institut fur Solarenergieforschung GmbH | 32 |
4 |
| The Methodist Hospital | 124 |
4 |
| NexWafe GmbH | 24 |
4 |
| TruTag Technologies, Inc. | 42 |
4 |
| Lockheed Martin Corporation | 3277 |
3 |
| Sumitomo Chemical Company, Limited | 9046 |
3 |
| Board of Regents, The University of Texas System | 5793 |
3 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10923 |
3 |
| Cambridge Enterprise Limited | 1185 |
3 |
| Christian-albrechts-universitat zu Kiel | 236 |
3 |
| IQE plc. | 114 |
3 |
| William Marsh Rice University | 1009 |
3 |
| Ionblox, Inc. | 62 |
3 |
| United Microelectronics Corp. | 4268 |
2 |
| The Board of Trustees of the University of Illinois | 2688 |
2 |
| Other owners | 62 |