Chi Hung Cheung

PI Pi International: 3 patents #1 of 4Top 25%

📍 Sha Tin, CN: #514 of 2,424 inventorsTop 25%

Overall (All Time): #1,554,656 of 4,157,543Top 40%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
8242771	Current sensing inductor and a circuit thereof	—	2012-08-14
7944713	Electric power conversion circuit having transfer gain variable by pulse-width modulation	—	2011-05-17
7227762	Fine-tuning circuit for the winding voltage of a transformer	—	2007-06-05