SONGHUI CHEN

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SHANGHAI, CN

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Patents Grantslast 30 patents

Information Patent Grant
Filament based solid state lighting device
- Patent number 11,982,411
- Issue date May 14, 2024
- SIGNIFY HOLDINGS B.V.
- Xiaogai Tian
- F21 - LIGHTING

Patents Applicationslast 30 patents

Information Patent Application
A WHITE LIGHT EMITTING DEVICE
- Publication number 20250113691
- Publication date Apr 3, 2025
- SIGNIFY HOLDING B.V.
- TUNG CHING WU
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FILAMENT BASED SOLID STATE LIGHTING DEVICE
- Publication number 20240068628
- Publication date Feb 29, 2024
- SIGNIFY HOLDING B.V.
- XIAOGAI TIAN
- F21 - LIGHTING