Inventor · disambiguated record
Tzu-Chung Chang
Also filed as: CHANG TZU-CHUNG
5 granted patents·7 pending applications·19 citations·filing 2004–2019
73Inventor score
Technology areasH04R
Top patents by PatentIndex Score
12 records- 0181US10728639B1Speaker mounting assemblyCHANG TZU CHUNG·Filed 2019·Granted Jul 28, 2020·6 cites·9 claims
- 0261US7616775B2Engaging device for speaker cabinetCHANG TZU-CHUNG·Filed 2006·Granted Nov 10, 2009·4 cites·6 claims
- 0355US7031488B2Super tweeterSUN TECH ELECTRIC CO LTD·Filed 2004·Granted Apr 18, 2006·8 cites·5 claims
- 0452US8520876B2Assembly structure for speaker systemCHANG TZU-CHUNG·Filed 2011·Granted Aug 27, 2013·1 cites·9 claims
- 0546US2011110537A1Light-Powered Loudspeaker SystemCHANG TZU-CHUNG·Filed 2009·Application pending·0 cites
- 0645US2010278370A1Motor Structure of LoudspeakerCHANG TZU-CHUNG·Filed 2009·Application pending·0 cites
- 0741US2016142800A1In-Wall/In-Ceiling Speaker with Grid AssemblyCHANG TZU-CHUNG·Filed 2014·Application pending·0 cites
- 0838US2015086065A1Loudspeakers With Double DampersCHANG TZU-CHUNG·Filed 2013·Application pending·0 cites
- 0934US9615156B1Engaging structure for installation of a loudspeakerCHANG TZU-CHUNG·Filed 2015·Granted Apr 4, 2017·0 cites·11 claims
- 1034US2012275638A1Sandwich-Type Woofer with Two Sound Wave Propagation Directions and a Magnetic-Looped Device ThereofCHANG TZU-CHUNG·Filed 2011·Application pending·0 cites
- 1134US2012275627A1Sandwich-type Woofer with Two Sound Wave Propagation DirectionsCHANG TZU-CHUNG·Filed 2011·Application pending·0 cites
- 1234US2012207333A1Sound BoxCHANG TZU-CHUNG·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →