Assignee

APOGEE ACOUSTICS INC

US·2 granted patents·97 citations·filing 1983–1991

Technology mixH04R2 Y10T1

Top patents by PatentIndex Score

2 records

0177US4550228ARibbon speaker systemAPOGEE ACOUSTICS INC·Filed 1983·Granted Oct 29, 1985·57 cites·25 claims
0274US5195143AAcoustical ribbon transducer loudspeaker systemAPOGEE ACOUSTICS INC·Filed 1991·Granted Mar 16, 1993·40 cites·6 claims

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