- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F21K - Non-electric light sources using luminescencelight sources using electrochemiluminescencelight sources using charges of combustible materiallight sources using semiconductor devices as light-generating elementslight sources not otherwise provided for
- F21K 9/90 - Methods of manufacture
Patent holdings for IPC class F21K 9/90
Total number of patents in this class: 571
10-year publication summary
|
69
|
80
|
117
|
99
|
85
|
77
|
41
|
24
|
27
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Signify Holding B.V. | 7364 |
68 |
| LEDVANCE GmbH | 572 |
30 |
| Lumileds LLC | 1882 |
23 |
| Nichia Corporation | 3636 |
22 |
| Optovate Limited | 36 |
12 |
| Ledvance LLC | 323 |
11 |
| Fluence Bioengineering, Inc. | 118 |
11 |
| Ideal Industries Lighting LLC | 1137 |
10 |
| Feit Electric Company, Inc. | 251 |
8 |
| Edisonled LLC | 56 |
8 |
| ABL IP Holding LLC | 1903 |
6 |
| Epistar Corporation | 1489 |
6 |
| Lumileds Holding B.V. | 353 |
6 |
| OSRAM OLED GmbH | 1786 |
6 |
| Philips Lighting Holding B.V. | 1357 |
6 |
| Xiamen Eco Lighting Co. Ltd. | 288 |
6 |
| Creeled, Inc. | 785 |
6 |
| OSRAM GmbH | 2393 |
5 |
| OSRAM Opto Semiconductors GmbH | 3325 |
5 |
| Boe Technology Group Co., Ltd. | 40311 |
5 |
| Other owners | 311 |