Li Sang — 2 Patents at Rototech Electrical Components

Li Sang has been granted 2 US patents while listed as an inventor at Rototech Electrical Components. The first was granted in 2004 and the most recent in April 2025. Li Sang ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Li Sang in Sichuan, CN.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
12262704	Easy-to-clean visual grain monitoring device	Xiaochun Qi, Tao Li, Xin Li, Ou Bai, Fuzhi Huang +1 more	2025-04-01
6714116	Circuit breaker switch	Ng Chi Ho	2004-03-30

Li Sang — 2 Patents

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