- 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: 553
10-year publication summary
51
|
69
|
80
|
117
|
99
|
85
|
76
|
41
|
23
|
10
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Signify Holding B.V. | 6837 |
65 |
LEDVANCE GmbH | 564 |
30 |
Lumileds LLC | 1827 |
23 |
Nichia Corporation | 3394 |
21 |
Epistar Corporation | 1553 |
16 |
Optovate Limited | 37 |
12 |
Ledvance LLC | 336 |
11 |
Fluence Bioengineering, Inc. | 122 |
11 |
Ideal Industries Lighting LLC | 1168 |
10 |
Feit Electric Company, Inc. | 237 |
8 |
Zhuhai Bojay Electronics Co., Ltd. | 22 |
8 |
Argo Import-Export, Ltd. | 9 |
7 |
ABL IP Holding LLC | 1929 |
6 |
Lumileds Holding B.V. | 358 |
6 |
OSRAM OLED GmbH | 1841 |
6 |
Philips Lighting Holding B.V. | 1437 |
6 |
Xiamen Eco Lighting Co. Ltd. | 288 |
6 |
OSRAM GmbH | 2442 |
5 |
OSRAM Opto Semiconductors GmbH | 3390 |
5 |
Zhejiang Super Lighting Electric Appliance Co., Ltd. | 52 |
5 |
Other owners | 286 |