- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F21S - Non-portable lighting devices; systems thereof; vehicle lighting devices specially adapted for vehicle exteriors
- F21S 4/10 - Lighting devices or systems using a string or strip of light sources with light sources attached to loose electric cables, e.g. Christmas tree lights
Patent holdings for IPC class F21S 4/10
Total number of patents in this class: 359
10-year publication summary
16
|
27
|
55
|
88
|
75
|
60
|
79
|
61
|
47
|
15
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Willis Electric Co., Ltd. | 91 |
46 |
Polygroup Macau Limited (BVI) | 122 |
18 |
Belgravia Wood Limited | 115 |
15 |
Blooming International Limited | 24 |
12 |
Zhuhai Bojay Electronics Co., Ltd. | 22 |
12 |
Seasons 4 Inc. | 32 |
9 |
Jiangsu Feitian Lighting Co., Ltd. | 18 |
9 |
Seasonal Specialties, LLC | 84 |
8 |
Foot-candle, LLC | 8 |
8 |
Cosmo Lighting Inc. | 16 |
7 |
National Christmas Products LLC | 78 |
7 |
Lamplight Farms Incorporated | 110 |
5 |
Ledup Manufacturing Group Ltd. | 15 |
5 |
Gemmy Industries Corporation | 63 |
4 |
Shangyou Jiayi Lighting Product Co., Ltd. | 16 |
4 |
Lamues Light Enterprise Co., LTD | 5 |
4 |
Zhangzhou Go Win Lighting Co., Ltd | 24 |
4 |
Robert Bosch GmbH | 40953 |
3 |
Adams Mfg. Corp. | 92 |
3 |
Shenzhen Guanke Technologies Co., Ltd | 79 |
3 |
Other owners | 173 |