DF

Dai Feng

AP Aac Technologies Pte.: 2 patents #56 of 155Top 40%
AC Aac Acoustic Technologies (Shenzhen) Co.: 1 patents #22 of 47Top 50%
Overall (2021): #86,384 of 548,734Top 20%
3
Patents 2021

Issued Patents 2021

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10993034 Speaker and method for manufacturing speaker — 2021-04-27
10979816 Speaker — 2021-04-13
10924862 Micro sound device Jiasheng Zhou, Chenliang Kong 2021-02-16