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Rich Chen

SISilitek: 3 patents #13 of 115Top 15%
Overall (All Time): #1,625,770 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6011495 Multimedia keyboard structure — 2000-01-04
5897257 Keyboard with expandable function keys — 1999-04-27
5880539 Electromagnet induced switch — 1999-03-09

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Arthur W. Mansfield3
Christopher Kent Moyer3
John Joseph Ball3
Makiko Shimamura3