Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Xiaolei Cai — 3 Patents

SYSynopsys: 2 patents #669 of 2,302Top 30%
SYSynopsis: 1 patents #1 of 39Top 3%
Portland, OR: #3,796 of 9,213 inventorsTop 45%
Oregon: #10,287 of 28,073 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Xiaolei Cai has been granted 3 US patents while listed as an inventor at Synopsys. The first was granted in 2019 and the most recent in May 2022. Xiaolei Cai ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Xiaolei Cai in Portland, OR, US.

Patents per Year

Patents granted per year, 2019 to 2022Bar chart with a peak of 1 patents in 2019.peak 12019: 1 patents20192020: 1 patents20202022: 1 patents2022

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11334698 Cell-aware defect characterization by considering inter-cell timing Ruifeng Guo, Emil Gizdarski 2022-05-17 $106,794,000
10528692 Cell-aware defect characterization for multibit cells Ruifeng Guo, Brian Archer, Kevin Chau 2020-01-07 $15,009,000
10515167 Cell-aware defect characterization and waveform analysis using multiple strobe points Ruifeng Guo, Brian Archer, William A. Lloyd, Christopher Kevin Allsup, Kevin Chau 2019-12-24