CC

Chi-Cheng Chang

KC K.H.S. Musical Instrument Co.: 1 patents #5 of 15Top 35%
QC Quanta Computer: 1 patents #690 of 1,295Top 55%
Overall (All Time): #807,435 of 4,157,543Top 20%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
D990523 Blade 2023-06-27
D983841 Blade 2023-04-18
11084180 Cutting blade for brush cutter 2021-08-10
8749611 Video conference system Barry Lam, Chia-Yuan Chang, Rong-Quen Chen, Huan-Tang Wu, Chih-Wei Sung +8 more 2014-06-10
8471134 Bass drum pedal assembly of drum kit 2013-06-25
5905218 Device for connecting two drum pedals of a drum 1999-05-18