- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 33/04 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a quantum effect structure or superlattice, e.g. tunnel junction
Patent holdings for IPC class H01L 33/04
Total number of patents in this class: 990
10-year publication summary
|
65
|
75
|
88
|
90
|
60
|
63
|
100
|
55
|
35
|
28
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 149087 |
55 |
| Sensor Electronic Technology, Inc. | 469 |
43 |
| OSRAM Opto Semiconductors GmbH | 3287 |
41 |
| Seoul Viosys Co., Ltd. | 1489 |
38 |
| Suzhou Lekin Semiconductor Co., Ltd. | 1344 |
32 |
| Jade Bird Display (Shanghai) Limited | 376 |
27 |
| The Regents of the University of California | 20289 |
22 |
| Epistar Corporation | 1478 |
22 |
| LG Innotek Co., Ltd. | 7924 |
20 |
| Samsung Display Co., Ltd. | 36265 |
18 |
| OSRAM OLED GmbH | 1765 |
15 |
| Xiamen San'an Optoelectronics Co., Ltd. | 298 |
15 |
| equal1.labs Inc. | 38 |
15 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10954 |
14 |
| Rohm Co., Ltd. | 6560 |
13 |
| Nichia Corporation | 3777 |
13 |
| Lumileds Singapore Pte. Ltd. | 1264 |
11 |
| Silanna UV Technologies Pte Ltd | 116 |
10 |
| Toyoda Gosei Co., Ltd. | 1819 |
9 |
| Seoul Semiconductor Co., Ltd. | 1073 |
9 |
| Other owners | 548 |