Assignee
4A MFG GMBH
AT·4 granted patents·2 pending applications·9 citations·filing 2014–2022
Top patents by PatentIndex Score
6 records- 0185US10028060B2Temperature stable membrane plate structure for a loudspeaker4A MFG GMBH·Filed 2016·Granted Jul 17, 2018·4 cites·8 claims
- 0279US10034093B2Temperature stable membrane plate structure for a loudspeaker4A MFG GMBH·Filed 2017·Granted Jul 24, 2018·5 cites·20 claims
- 0364US12479575B2Integrated frame structure4A MFG GMBH·Filed 2022·Granted Nov 25, 2025·0 cites·20 claims
- 0450US2016114562A1Three-dimensional structureal member formed by a sandwich structure with foam core between metallic layers4A MFG GMBH·Filed 2014·Application pending·0 cites
- 0537US11039252B2Membrane plate structure for generating sound waves4A MFG GMBH·Filed 2017·Granted Jun 15, 2021·0 cites·18 claims
- 0629US2019394595A1Membrane Plate Structure For Generating Sound Waves4A MFG GMBH·Filed 2017·Application pending·0 cites
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