YG

Yuancheng Guo

OG Osram Gmbh: 1 patents #481 of 946Top 55%
Overall (All Time): #3,140,066 of 4,157,543Top 80%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8917030 Electronic ballast for lighting unit and lighting apparatus Hong-Hai Dai, Wei Gao, Changsong Ma 2014-12-23