Donald N. Ruff, Jr.

MS Mather Seal: 1 patents #3 of 11Top 30%

📍 Sylvania, OH: #196 of 344 inventorsTop 60%

🗺 Ohio: #42,657 of 73,341 inventorsTop 60%

Overall (All Time): #3,823,575 of 4,157,543Top 95%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5209499	Unitized polytetrafluoroethylene radial lip seal	Mark M. Migda	1993-05-11