- 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: 580
10-year publication summary
|
78
|
116
|
96
|
84
|
72
|
41
|
23
|
26
|
13
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Signify Holding B.V. | 7858 |
69 |
| LEDVANCE GmbH | 587 |
30 |
| Nichia Corporation | 3826 |
23 |
| Lumileds Singapore Pte. Ltd. | 1261 |
20 |
| Optovate Limited | 36 |
12 |
| Ledvance LLC | 313 |
11 |
| Fluence Bioengineering, Inc. | 116 |
11 |
| Feit Electric Company, Inc. | 282 |
8 |
| Edisonled LLC | 55 |
8 |
| Prosperina Ventures LLC | 120 |
8 |
| Creeled, Inc. | 963 |
7 |
| Korrus, Inc. | 481 |
7 |
| ABL IP Holding LLC | 1896 |
6 |
| Epistar Corporation | 1483 |
6 |
| OSRAM OLED GmbH | 1756 |
6 |
| Philips Lighting Holding B.V. | 1340 |
6 |
| Xiamen Eco Lighting Co. Ltd. | 282 |
6 |
| LG Innotek Co., Ltd. | 8136 |
5 |
| OSRAM GmbH | 2270 |
5 |
| OSRAM Opto Semiconductors GmbH | 3271 |
5 |
| Other owners | 321 |