Assignee
CHANG TZU-CHUNG
4 granted patents·7 pending applications·11 citations·filing 2006–2019
Top patents by PatentIndex Score
11 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
- 0352US8520876B2Assembly structure for speaker systemCHANG TZU-CHUNG·Filed 2011·Granted Aug 27, 2013·1 cites·9 claims
- 0446US2011110537A1Light-Powered Loudspeaker SystemCHANG TZU-CHUNG·Filed 2009·Application pending·0 cites
- 0545US2010278370A1Motor Structure of LoudspeakerCHANG TZU-CHUNG·Filed 2009·Application pending·0 cites
- 0641US2016142800A1In-Wall/In-Ceiling Speaker with Grid AssemblyCHANG TZU-CHUNG·Filed 2014·Application pending·0 cites
- 0738US2015086065A1Loudspeakers With Double DampersCHANG TZU-CHUNG·Filed 2013·Application pending·0 cites
- 0834US9615156B1Engaging structure for installation of a loudspeakerCHANG TZU-CHUNG·Filed 2015·Granted Apr 4, 2017·0 cites·11 claims
- 0934US2012275638A1Sandwich-Type Woofer with Two Sound Wave Propagation Directions and a Magnetic-Looped Device ThereofCHANG TZU-CHUNG·Filed 2011·Application pending·0 cites
- 1034US2012275627A1Sandwich-type Woofer with Two Sound Wave Propagation DirectionsCHANG TZU-CHUNG·Filed 2011·Application pending·0 cites
- 1134US2012207333A1Sound BoxCHANG TZU-CHUNG·Filed 2011·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when CHANG TZU-CHUNG files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →