JS

John C. K. Sham

PE Pentalpha Enterprises: 1 patents #1 of 2Top 50%
📍 Sha Tin, CN: #4 of 46 inventorsTop 9%
Overall (1997): #14,661 of 185,788Top 8%
3
Patents 1997

Issued Patents 1997

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5692315 Hair steaming apparatus 1997-12-02
5680810 Steam toaster oven 1997-10-28
5595672 Automatic power interrupting apparatus for an electric appliance Fan K. Leung 1997-01-21