- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 31/0312 - Inorganic materials including, apart from doping materials or other impurities, only AIVBIV compounds, e.g. SiC
Patent holdings for IPC class H01L 31/0312
Total number of patents in this class: 348
10-year publication summary
|
28
|
28
|
25
|
33
|
23
|
21
|
20
|
13
|
8
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Electric Industries, Ltd. | 15750 |
28 |
| Toshiba Corporation | 12540 |
18 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 46069 |
18 |
| Mitsubishi Electric Corporation | 46870 |
15 |
| Cree, Inc. | 968 |
10 |
| GLOBALFOUNDRIES U.S. Inc. | 6417 |
10 |
| Infineon Technologies AG | 8279 |
9 |
| Artilux Inc. | 145 |
9 |
| STMicroelectronics S.r.l. | 3440 |
8 |
| Fuji Electric Co., Ltd. | 5243 |
8 |
| Samsung Electronics Co., Ltd. | 148924 |
7 |
| Rohm Co., Ltd. | 6553 |
7 |
| Hitachi, Ltd. | 15679 |
5 |
| Denso Corporation | 24755 |
5 |
| W&wsens Devices, Inc. | 23 |
5 |
| International Business Machines Corporation | 61734 |
4 |
| Massachusetts Institute of Technology | 10130 |
4 |
| Lawrence Livermore National Security, LLC | 1938 |
4 |
| University of South Carolina | 841 |
4 |
| General Electric Company | 13861 |
3 |
| Other owners | 167 |