Assignee
ESSI CORP
US·3 granted patents·28 citations·filing 1996–2006
Technology mixB63B2
Top patents by PatentIndex Score
3 records- 0189US7360499B1Helmholtz resonator type marine signalESSI CORP·Filed 2005·Granted Apr 22, 2008·23 cites·18 claims
- 0236USD556077SMarine fog hornESSI CORP·Filed 2006·Granted Nov 27, 2007·3 cites·1 claims
- 0312US5770961AUniversal acoustic power amplifierESSI CORP·Filed 1996·Granted Jun 23, 1998·2 cites·35 claims
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