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AC Aac Acoustic Technologies (Shenzhen) Co.: 1 patents #138 of 263Top 55%
AC American Audio Components: 1 patents #23 of 57Top 45%
Overall (All Time): #3,171,498 of 4,157,543Top 80%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8511423 Acoustic diode Jian-Chun Cheng, Bin Liang, Juan TU, Dong Zhang 2013-08-20