- 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 9/12 - Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromaticElements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for reducing intensity of light with liquid-filled chambers
Patent holdings for IPC class F21V 9/12
Total number of patents in this class: 20
10-year publication summary
|
2
|
0
|
3
|
2
|
2
|
2
|
2
|
1
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Massachusetts Institute of Technology | 10285 |
3 |
| ABL IP Holding LLC | 1885 |
2 |
| Koninklijke Philips Electronics N.V. | 7243 |
1 |
| Coretronic Corporation | 1374 |
1 |
| Korea Airports Corporation | 59 |
1 |
| Lapin Create, Inc. | 14 |
1 |
| Maxs AG | 1 |
1 |
| Switch Bulb Company, Inc. | 35 |
1 |
| Shenzhen Sunrise Technology Co., Ltd. | 8 |
1 |
| Philips Intellectual Property & Standards GmbH | 1590 |
1 |
| Omnicolor, L.P. | 5 |
1 |
| Prebio Corporation | 1 |
1 |
| Suzhou Guyuefeng Information Technology Co. Ltd. | 3 |
1 |
| Pictiva Displays International Limited | 252 |
1 |
| Portable Walls Holding LLC | 2 |
1 |
| Aisha Ruth Knight | 2 |
1 |
| Led-ip Management, LLC | 822 |
1 |
| Other owners | 0 |