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

John M. Birkhimer

CDCo-Tech Development: 1 patents #8 of 20Top 40%
Urbana, OH: #49 of 86 inventorsTop 60%
Ohio: #42,657 of 73,341 inventorsTop 60%
Overall (All Time): #3,459,518 of 4,157,543Top 85%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6948392 Inertia drive torque transmission level control and engine starter incorporating same David W. Eckard 2005-09-27