Shih-En Chen — 2 Patents

PTProdisc Technology: 2 patents #10 of 34Top 30%

Overall (All Time): #2,178,252 of 4,157,543Top 55%

2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
6867934	Color wheel	Chih-Neng Chang, Ke-Shu Chin, An-Hwa Yu	2005-03-15
6769776	Color wheel assembly	Chih-Neng Chang, Ke-Shu Chin, An-Hwa Yu	2004-08-03