- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F21V - Functional features or details of lighting devices or systems thereofstructural combinations of lighting devices with other articles, not otherwise provided for
- F21V 29/504 - Cooling arrangements characterised by the adaptation for cooling of specific components of refractors
Patent holdings for IPC class F21V 29/504
Total number of patents in this class: 45
10-year publication summary
|
3
|
7
|
6
|
2
|
1
|
2
|
2
|
7
|
1
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hisense Broadband Multimedia Technologies Co., Ltd. | 486 |
6 |
| Hisense Broadband Multimedia Technologies, Ltd. | 16 |
6 |
| Signify Holding B.V. | 8161 |
4 |
| Ichikoh Industries, Ltd. | 396 |
2 |
| Koito Manufacturing Co., Ltd. | 2477 |
2 |
| Ushio Denki Kabushiki Kaisha | 1210 |
2 |
| Guangyi (Xiamen) Technology Co., Ltd. | 3 |
2 |
| Ledil Optics Technology (Shenzhen) Ltd. | 3 |
2 |
| Sony Corporation | 30080 |
1 |
| Canon Inc. | 44222 |
1 |
| Air Motion Systems, Inc. | 30 |
1 |
| CRYTUR, spol.s r.o. | 6 |
1 |
| Electronic Theatre Controls, Inc. | 257 |
1 |
| Guangzhou Haoyang Electronic Co., Ltd. | 250 |
1 |
| OSRAM OLED GmbH | 1390 |
1 |
| Philips Lighting Holding B.V. | 1324 |
1 |
| Phoenix Electric Co., Ltd. | 41 |
1 |
| ROBE Lighting s.r.o. | 149 |
1 |
| Minebea Mitsumi Inc. | 1977 |
1 |
| Harman Professional Denmark ApS | 157 |
1 |
| Other owners | 7 |