TC

Tat Kwong Cheung

Overall (All Time): #884,210 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
6302717 Multiple socket electric adapter 2001-10-16
6039607 Electric plug 2000-03-21
D400856 Housing for an expandable electric plug 1998-11-10
5772447 Pivoting electrical plug 1998-06-30
D375720 Housing for a pivoting electrical plug 1996-11-19
D375291 Housing for a pivoting electrical plug 1996-11-05