- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 33/42 - Transparent materials
Patent holdings for IPC class H01L 33/42
Total number of patents in this class: 1720
10-year publication summary
|
179
|
161
|
170
|
179
|
144
|
131
|
133
|
95
|
108
|
43
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seoul Viosys Co., Ltd. | 1485 |
122 |
| Epistar Corporation | 1476 |
119 |
| Samsung Electronics Co., Ltd. | 148765 |
105 |
| Samsung Display Co., Ltd. | 36065 |
70 |
| OSRAM Opto Semiconductors GmbH | 3287 |
57 |
| Nichia Corporation | 3764 |
56 |
| Suzhou Lekin Semiconductor Co., Ltd. | 1348 |
55 |
| OSRAM OLED GmbH | 1765 |
53 |
| Toyoda Gosei Co., Ltd. | 1821 |
37 |
| Seoul Semiconductor Co., Ltd. | 1076 |
32 |
| Rohm Co., Ltd. | 6544 |
28 |
| Micron Technology, Inc. | 26461 |
27 |
| Showa Denko K.K. | 2182 |
27 |
| LG Electronics Inc. | 73680 |
26 |
| Aledia | 354 |
25 |
| LG Display Co., Ltd. | 13857 |
21 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10950 |
19 |
| Boe Technology Group Co., Ltd. | 41615 |
19 |
| Apple Inc. | 56170 |
18 |
| Korea University Research and Business Foundation | 3071 |
18 |
| Other owners | 786 |