QSC AUDIO PRODUCTS, LLC
Patent Owner
Stats
- 1 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Jul 01, 2014 most recent publication
Details
- 1 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 188 Total Citation Count
- Jan 14, 1980 Earliest Filing
- 5 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
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Technology
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Recent Patents
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Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
7279967 Multi-channel, multi-power class D amplifier with regulated power supplyExpiredJan 12, 06Oct 09, 07[H03F]
5767744 Lightweight fixed frequency discontinuous resonant power supply for audio amplifiersExpiredNov 21, 96Jun 16, 98[H03F]
4321554 Time-delayed, variable output current limiting means for power amplifiersExpiredJan 14, 80Mar 23, 82[H03F]
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