- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 33/12 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a stress relaxation structure, e.g. buffer layer
Patent holdings for IPC class H01L 33/12
Total number of patents in this class: 1436
10-year publication summary
148
|
151
|
121
|
137
|
95
|
102
|
81
|
76
|
87
|
29
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Samsung Electronics Co., Ltd. | 144426 |
91 |
Seoul Viosys Co., Ltd. | 1465 |
64 |
Sensor Electronic Technology, Inc. | 470 |
59 |
Epistar Corporation | 1489 |
58 |
Suzhou Lekin Semiconductor Co., Ltd. | 1424 |
45 |
Quanzhou Sanan Semiconductor Technology Co., Ltd | 228 |
28 |
OSRAM OLED GmbH | 1783 |
27 |
Commissariat à l'énergie atomique et aux energies alternatives | 10879 |
26 |
OSRAM Opto Semiconductors GmbH | 3316 |
24 |
Lumileds LLC | 1911 |
24 |
Seoul Semiconductor Co., Ltd. | 1078 |
24 |
Nichia Corporation | 3669 |
23 |
Samsung Display Co., Ltd. | 34290 |
21 |
Enkris Semiconductor, Inc. | 379 |
18 |
Silanna UV Technologies Pte Ltd | 109 |
18 |
Toyoda Gosei Co., Ltd. | 1771 |
17 |
PlayNitride Display Co., Ltd. | 307 |
17 |
LG Display Co., Ltd. | 13226 |
16 |
LG Innotek Co., Ltd. | 7552 |
16 |
Xiamen Sanan Optoelectronics Technology Co., Ltd. | 189 |
16 |
Other owners | 804 |