Assignee
RALPH ALEXANDER B
US·2 granted patents·2 pending applications·0 citations·filing 2018–2019
Technology mixH04R4
Top patents by PatentIndex Score
4 records- 0143US10462577B2Ported cavity tweeterRALPH ALEXANDER B·Filed 2019·Granted Oct 29, 2019·0 cites·20 claims
- 0242US10469938B2Diaphragm ported tweeterRALPH ALEXANDER B·Filed 2018·Granted Nov 5, 2019·0 cites·20 claims
- 0340US2019253790A1Ported tweeterRALPH ALEXANDER B·Filed 2018·Application pending·0 cites
- 0440US2019253806A1Ported tweeterRALPH ALEXANDER B·Filed 2018·Application pending·0 cites
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