RC

Richard Chao

CO Contour Optik: 2 patents #2 of 2Top 100%
AC Asahi Optical Co.: 1 patents #1 of 1Top 100%
📍 Kaohsiung, MD: #1 of 1 inventorsTop 100%
Overall (2002): #12,807 of 266,432Top 5%
4
Patents 2002

Issued Patents 2002

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6425913 Electrical heating correcting waist pad 2002-07-30
6382407 Eyeglass case adapted to be hung on the neck of the user 2002-05-07
6367926 Eye-wear with magnets David Chao 2002-04-09
RE37545 Auxiliary lenses for eyeglasses 2002-02-12