Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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S.L. CHEN — 2 Patents

SISilitek: 2 patents #25 of 115Top 25%
Zhubei City, TW: #677 of 1,506 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
S.L. CHEN has been granted 2 US patents while listed as an inventor at Silitek. The first was granted in 1994 and the most recent in February 2001. S.L. CHEN ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list S.L. CHEN in Zhubei City, TW.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6184481 Key switches for computer keyboards 2001-02-06
5283408 Structure of key switch 1994-02-01