Inventor
JIAO QIJIN
CN4 patents
Patents
4 patentsUS9788121B2Oct 10, 2017
Flat plate-type bass loudspeaker
GOERTEK INC2 citations71
US9769572B2Sep 19, 2017
Tablet woofer and electronic device using same
GOERTEK INC2 citations71
US10440478B2Oct 8, 2019
Tablet woofer and electronic device using same
GOERTEK INC1 citations61
US9648424B2May 9, 2017
Tablet woofer
GOERTEK INC0 citations40