- 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 29/51 - Cooling arrangements using condensation or evaporation of a fluid, e.g. heat pipes
Patent holdings for IPC class F21V 29/51
Total number of patents in this class: 207
10-year publication summary
|
25
|
32
|
29
|
34
|
20
|
37
|
18
|
19
|
10
|
0
|
| 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 |
15 |
| Hotalux, Ltd. | 88 |
14 |
| Ideal Industries Lighting LLC | 1168 |
13 |
| Sony Corporation | 32931 |
8 |
| LG Electronics Inc. | 69257 |
7 |
| eLumigen LLC | 33 |
3 |
| NBCUniversal Media, LLC | 539 |
3 |
| ROBE Lighting s.r.o. | 109 |
3 |
| Sportsbeams Lighting, Inc. | 10 |
3 |
| Mitsubishi Electric Corporation | 43934 |
2 |
| Kyocera Corporation | 12735 |
2 |
| LG Innotek Co., Ltd. | 6758 |
2 |
| Fujikura Ltd. | 2777 |
2 |
| A66 Incorporated | 8 |
2 |
| ABL IP Holding LLC | 1929 |
2 |
| at & S Austria Technologie & Systemtechnik Aktiengesellschaft | 427 |
2 |
| Covestro Deutschland AG | 2429 |
2 |
| Denka Company Limited | 2189 |
2 |
| Dynotron, Inc. | 6 |
2 |
| Dyson Technology Limited | 3124 |
2 |
| Other owners | 116 |