- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F21V - Functional features or details of lighting devices or systems thereof; structural combinations of lighting devices with other articles, not otherwise provided for
- F21V 29/61 - Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by control arrangements
Patent holdings for IPC class F21V 29/61
Total number of patents in this class: 66
10-year publication summary
|
11
|
7
|
14
|
7
|
11
|
7
|
7
|
7
|
5
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Go Fan Yourself, LLC | 45 |
5 |
| Cleantek Industries Inc. | 30 |
4 |
| Signify Holding B.V. | 7214 |
4 |
| Guangzhou Haoyang Electronic Co., Ltd. | 223 |
3 |
| NBCUniversal Media, LLC | 537 |
3 |
| ROBE Lighting s.r.o. | 121 |
3 |
| Nail Alliance, LLC | 112 |
2 |
| Production Resource Group, LLC | 243 |
2 |
| Sld Technology, Inc. | 29 |
2 |
| Fohse Inc. | 23 |
2 |
| Blue Skies 1989 B.V. | 3 |
2 |
| Clay Paky S.r.l. | 127 |
2 |
| Samsung Electronics Co., Ltd. | 138320 |
1 |
| Denso Corporation | 23692 |
1 |
| Hoya Corporation | 2812 |
1 |
| Makita Corporation | 2400 |
1 |
| Japan Display Inc. | 6732 |
1 |
| Air Motion Systems, Inc. | 35 |
1 |
| citizen Electronics Co., Ltd. | 362 |
1 |
| citizen Watch Co., Ltd. | 1070 |
1 |
| Other owners | 24 |