- 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 31/04 - Provision of filling media
Patent holdings for IPC class F21V 31/04
Total number of patents in this class: 224
10-year publication summary
|
20
|
16
|
20
|
13
|
14
|
20
|
12
|
18
|
16
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| OSRAM GmbH | 2381 |
13 |
| LG Innotek Co., Ltd. | 7834 |
10 |
| Signify Holding B.V. | 7637 |
10 |
| Hgci, Inc. | 323 |
9 |
| Elemental LED, Inc. | 175 |
8 |
| OPTOTRONIC GmbH | 159 |
8 |
| Hayward Industries, Inc. | 667 |
4 |
| LSI Industries, Inc. | 181 |
4 |
| The Sloan Company, Inc. | 55 |
4 |
| Eaton Intelligent Power Limited | 6039 |
4 |
| Korrus, Inc. | 467 |
4 |
| Metro Marine LLC | 7 |
4 |
| e Ink Holdings Inc. | 645 |
3 |
| Hangzhou Hpwinner Opto Corporation | 104 |
3 |
| Hartman Design, Inc. | 22 |
3 |
| LEDVANCE GmbH | 581 |
3 |
| R. Stahl Schaltgeräte GmbH | 155 |
3 |
| Thermal Solution Resources, LLC | 8 |
3 |
| Tridonic Jennersdorf GmbH | 96 |
3 |
| Zodiac Pool Systems LLC | 398 |
3 |
| Other owners | 118 |