TELE FILTER ZWEIGNIEDERLASSUNG DER DOVER GERMANY GMBH

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6859117 Resonator filter cascadeExpiredNov 25, 02Feb 22, 05[H03H]
6762534 Transversally coupled resonator filterExpiredAug 06, 02Jul 13, 04[H01L]
6707229 Surface acoustic wave filterExpiredNov 30, 01Mar 16, 04[H01L, H02N]
6577041 Converter for surface acoustic wavesExpiredNov 30, 01Jun 10, 03[H01L, H02N, H03H]

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