Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
JB

John M. Birkhimer — 1 Patent

CDCo-Tech Development: 1 patents #8 of 20Top 40%
Urbana, OH: #49 of 86 inventorsTop 60%
Ohio: #42,926 of 73,341 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
John M. Birkhimer has been granted 1 US patent while listed as an inventor at Co-Tech Development. All of these patents were granted in 2005. John M. Birkhimer ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list John M. Birkhimer in Urbana, OH, US.

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