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

Don Chapman — 2 Patents

Dayton, OH: #737 of 1,892 inventorsTop 40%
Ohio: #30,338 of 73,341 inventorsTop 45%
Overall (All Time): #2,177,704 of 4,157,543Top 55%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6860695 Trailer tipper Michael White 2005-03-01
5269654 Tail rotor assembly for helicopters 1993-12-14