- 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 9/69 - Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction - Details of refractors forming part of the light source
Patent holdings for IPC class F21K 9/69
Total number of patents in this class: 373
10-year publication summary
14
|
34
|
55
|
48
|
60
|
64
|
60
|
38
|
30
|
8
|
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 |
24 |
Epistar Corporation | 1553 |
12 |
Optovate Limited | 37 |
12 |
Opple Lighting Co., Ltd. | 698 |
10 |
Ideal Industries Lighting LLC | 1168 |
10 |
ABL IP Holding LLC | 1929 |
9 |
Xiamen Eco Lighting Co. Ltd. | 288 |
9 |
LG Innotek Co., Ltd. | 6758 |
8 |
Samsung Electronics Co., Ltd. | 131630 |
7 |
Nichia Corporation | 3394 |
6 |
Bridgelux, Inc. | 351 |
6 |
Elemental LED, Inc. | 165 |
6 |
Lutron Technology Company LLC | 2300 |
6 |
Suzhou Lekin Semiconductor Co., Ltd. | 1710 |
6 |
LEDVANCE GmbH | 564 |
5 |
Lumileds LLC | 1827 |
5 |
Schreder | 45 |
5 |
Suzhou Opple Lighting Co., Ltd. | 479 |
5 |
Enplas Corporation | 900 |
4 |
Self Electronics Co., Ltd. | 150 |
4 |
Other owners | 214 |