CY

C. S. Yang

Overall (All Time): #1,290,178 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5504961 Electric toothbrush with drive release — 1996-04-09
D363605 Combined electric toothbrush set and stand Tony Kou 1995-10-31
D361433 Electric toothbrush — 1995-08-22
5231978 Non-powered, portable apparatus for cleaning the mouth Tony Shuo-Chun Kao 1993-08-03