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Some of our numerous patents include
- Electronic Filter Assembly - #6,323,743 granted 11/30/01
- SAW Television Scrambling system - #6,081,599 granted 6/27/00
- Return Step Attenuation Filter - #5,999,796 granted 12/7/99
- Return Path Filter - #5,745,838 granted 4/28/98
- Television Signal Enhancement and Scrambling System - #Re. 34,720 granted 9/6/94
- Narrow Band Notch Filter with Extended Passband - #5,157,362 granted 10/20/92
- Compact Filter having a multi-compartment housing - #4,901,043 granted 2/13/90
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