- 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: 259
10-year publication summary
|
26
|
17
|
18
|
30
|
14
|
26
|
18
|
7
|
15
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 131630 |
17 |
| Nichia Corporation | 3394 |
15 |
| Insiava (Pty) Limited | 25 |
8 |
| Hitachi, Ltd. | 16452 |
6 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
6 |
| Electronics and Telecommunications Research Institute | 8830 |
5 |
| Centre National de La Recherche Scientifique | 9632 |
4 |
| Rohm Co., Ltd. | 5843 |
4 |
| STMicroelectronics S.r.l. | 3693 |
4 |
| AKHAN Semiconductor, Inc. | 36 |
4 |
| Aledia | 303 |
4 |
| Institut National des Sciences Appliquees de Lyon | 253 |
4 |
| Tshwane University of Technology | 15 |
4 |
| V Technology Co., Ltd. | 394 |
4 |
| Acorn Semi, LLC | 49 |
4 |
| Panasonic Corporation | 20786 |
3 |
| The United States of America as represented by the Secretary of the Navy | 2734 |
3 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8635 |
3 |
| Showa Denko K.K. | 2539 |
3 |
| National Institute of Advanced Industrial Science and Technology | 3677 |
3 |
| Other owners | 151 |