RS

Rong-Lin Sheu

Overall (All Time): #1,021,797 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
7959368 Ink cartridge structure for pens — 2011-06-14
7658567 Automatic pencil — 2010-02-09
7448815 Mechanical pencil — 2008-11-11
6767150 Automatic pencil assembly — 2004-07-27
6254296 Automatic pencil structure — 2001-07-03