Inventor
ZHANG CHENGFEI
CN12 patents
⚠️ This page may combine multiple inventors who share the name “ZHANG CHENGFEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GOERTEK INC
10 patentsUS9832565B2Nov 28, 2017
Speaker sound hole device
GOERTEK INC4 citations72
US12096179B2Sep 17, 2024
Acoustic device and electronic apparatus
GOERTEK INC2 citations70
US11962969B2Apr 16, 2024
Acoustic device and electronic apparatus
GOERTEK INC2 citations70
US11310603B2Apr 19, 2022
Sound producing unit, sound producing module, and electronic terminal
GOERTEK INC1 citations56
US10219078B2Feb 26, 2019
Loudspeaker module
GOERTEK INC0 citations51
US10021489B2Jul 10, 2018
Loudspeaker module
GOERTEK INC0 citations51
US12035121B2Jul 9, 2024
Conductive film for a sound generation device and the sound generation device
GOERTEK INC0 citations50
US10057687B2Aug 21, 2018
Speaker structure
GOERTEK INC0 citations49
US11930343B2Mar 12, 2024
Sound producing unit, sound producing module, and electronic terminal
GOERTEK INC0 citations46
US10433038B2Oct 1, 2019
Loudspeaker module
GOERTEK INC0 citations41