Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Stephen E. Yao — 2 Patents in 2019

Apple: 2 patents #1,271 of 4,359Top 30%
Cupertino, CA: #437 of 1,624 inventorsTop 30%
California: #14,923 of 67,890 inventorsTop 25%
Overall (2019): #117,172 of 560,194Top 25%
2 Patents 2019

Issued Patents 2019

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10498159 Variable diameter coil for efficient inductive charging Tyler S. Bushnell, Makiko K. Brzezinski, Christopher S. Graham 2019-12-03
10320230 Temperature management for inductive charging systems Albert J. Golko, Eric S. Jol, Christopher S. Graham, Paul J. Thompson, Jeffrey M. Alves +4 more 2019-06-11