- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 33/34 - Materials of the light emitting region containing only elements of group IV of the periodic system
Patent holdings for IPC class H01L 33/34
Total number of patents in this class: 249
10-year publication summary
|
16
|
18
|
30
|
14
|
26
|
17
|
7
|
17
|
11
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nichia Corporation | 3752 |
16 |
| Samsung Electronics Co., Ltd. | 148173 |
14 |
| Insiava (Pty) Limited | 24 |
7 |
| Hitachi, Ltd. | 15612 |
6 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10964 |
6 |
| Samsung Display Co., Ltd. | 35585 |
5 |
| Rohm Co., Ltd. | 6518 |
4 |
| STMicroelectronics S.r.l. | 3598 |
4 |
| National Institute of Advanced Industrial Science and Technology | 3794 |
4 |
| AKHAN Semiconductor, Inc. | 49 |
4 |
| Aledia | 352 |
4 |
| Tshwane University of Technology | 17 |
4 |
| V Technology Co., Ltd. | 380 |
4 |
| Acorn Semi, LLC | 48 |
4 |
| Centre National de La Recherche Scientifique | 10611 |
3 |
| Panasonic Corporation | 20012 |
3 |
| Electronics and Telecommunications Research Institute | 9458 |
3 |
| The United States of America as represented by the Secretary of the Navy | 2788 |
3 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8476 |
3 |
| Boe Technology Group Co., Ltd. | 41701 |
3 |
| Other owners | 145 |