- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 33/56 - Materials, e.g. epoxy or silicone resin
Patent holdings for IPC class H01L 33/56
Total number of patents in this class: 3431
10-year publication summary
|
411
|
424
|
343
|
376
|
345
|
264
|
196
|
196
|
173
|
80
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nichia Corporation | 3701 |
437 |
| OSRAM Opto Semiconductors GmbH | 3312 |
172 |
| OSRAM OLED GmbH | 1778 |
119 |
| Samsung Electronics Co., Ltd. | 146092 |
118 |
| Lumileds LLC | 1920 |
88 |
| Seoul Semiconductor Co., Ltd. | 1082 |
76 |
| Suzhou Lekin Semiconductor Co., Ltd. | 1418 |
61 |
| Samsung Display Co., Ltd. | 34696 |
58 |
| Rohm Co., Ltd. | 6450 |
51 |
| Shin-Etsu Chemical Co., Ltd. | 5658 |
50 |
| LG Chem, Ltd. | 17632 |
42 |
| LG Innotek Co., Ltd. | 7643 |
41 |
| Epistar Corporation | 1489 |
40 |
| Creeled, Inc. | 784 |
40 |
| Toyoda Gosei Co., Ltd. | 1778 |
37 |
| citizen Watch Co., Ltd. | 1076 |
37 |
| Dow Toray Co., Ltd. | 567 |
37 |
| Seoul Viosys Co., Ltd. | 1469 |
34 |
| Lintec Corporation | 1962 |
33 |
| citizen Electronics Co., Ltd. | 348 |
32 |
| Other owners | 1828 |