Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Siman Li — 6 Patents

CTChangxin Memory Technologies: 6 patents #105 of 743Top 15%
Hefei, CN: #182 of 1,388 inventorsTop 15%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Siman Li has been granted 6 US patents while listed as an inventor at Changxin Memory Technologies. The first was granted in 2023 and the most recent in June 2025. Siman Li ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Siman Li in Hefei, CN.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
12341515 Delay-locked loop, delay locking method, clock synchronization circuit, and memory Yoonjoo Eom 2025-06-24
12243615 Calibration circuit and method with reference voltage generator and comparator 2025-03-04
12237839 Delay locked loop and memory Yoonjoo Eom 2025-02-25
12183423 Input buffer circuit and semiconductor memory 2024-12-31
11973496 Drive circuit 2024-04-30
11854653 Signal masking circuit and semiconductor memory 2023-12-26