Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
LC

Leland Chang

IBM: 2 patents #3,096 of 11,638Top 30%
New York, NY: #421 of 2,984 inventorsTop 15%
New York: #2,451 of 12,766 inventorsTop 20%
Overall (2021): #138,200 of 548,734Top 30%
2 Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11150712 Smart controller with phantom inductor current sensing for switched mode power supplies Xin Zhang, Todd E. Takken, Andrew Ferencz, Paul W. Coteus 2021-10-19
11114944 Fully integrated multi-phase buck converter with coupled air core inductors Xin Zhang, Todd E. Takken, Naigang Wang 2021-09-07