- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F21K - Non-electric light sources using luminescence; light sources using electrochemiluminescence; light sources using charges of combustible material; light sources using semiconductor devices as light-generating elements; light 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: 557
10-year publication summary
|
51
|
69
|
80
|
117
|
99
|
85
|
76
|
41
|
24
|
20
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Signify Holding B.V. | 6948 |
65 |
| LEDVANCE GmbH | 566 |
30 |
| Lumileds LLC | 1870 |
23 |
| Nichia Corporation | 3472 |
21 |
| Epistar Corporation | 1546 |
14 |
| Optovate Limited | 37 |
12 |
| Ledvance LLC | 331 |
11 |
| Fluence Bioengineering, Inc. | 121 |
11 |
| Ideal Industries Lighting LLC | 1153 |
10 |
| Feit Electric Company, Inc. | 244 |
8 |
| Zhuhai Bojay Electronics Co., Ltd. | 22 |
8 |
| ABL IP Holding LLC | 1925 |
6 |
| Argo Import-Export, Ltd. | 8 |
6 |
| Lumileds Holding B.V. | 359 |
6 |
| OSRAM OLED GmbH | 1802 |
6 |
| Philips Lighting Holding B.V. | 1419 |
6 |
| Xiamen Eco Lighting Co. Ltd. | 288 |
6 |
| OSRAM GmbH | 2413 |
5 |
| OSRAM Opto Semiconductors GmbH | 3360 |
5 |
| Zhejiang Super Lighting Electric Appliance Co., Ltd. | 51 |
5 |
| Other owners | 293 |