- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 31/0328 - Inorganic materials including, apart from doping materials or other impurities, semiconductor materials provided for in two or more of groups
Patent holdings for IPC class H01L 31/0328
Total number of patents in this class: 311
10-year publication summary
|
20
|
19
|
17
|
9
|
9
|
9
|
4
|
2
|
0
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 158605 |
19 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 48629 |
17 |
| GLOBALFOUNDRIES U.S. Inc. | 6385 |
8 |
| Toshiba Corporation | 12625 |
7 |
| Suzhou Lekin Semiconductor Co., Ltd. | 1241 |
7 |
| International Business Machines Corporation | 62754 |
6 |
| Intel Corporation | 47162 |
6 |
| Infineon Technologies Americas Corp. | 1944 |
6 |
| OpenLight Photonics, Inc | 200 |
6 |
| Fujitsu Limited | 16859 |
5 |
| Mitsubishi Electric Corporation | 48236 |
5 |
| IQE plc. | 129 |
5 |
| Sumitomo Electric Industries, Ltd. | 16331 |
4 |
| United Microelectronics Corp. | 4504 |
4 |
| OSRAM OLED GmbH | 1390 |
4 |
| Seoul Viosys Co., Ltd. | 1568 |
4 |
| Transphorm Technology, Inc. | 138 |
4 |
| Samsung Display Co., Ltd. | 38914 |
3 |
| Sony Corporation | 30097 |
3 |
| Northrop Grumman Systems Corporation | 2911 |
3 |
| Other owners | 185 |