RH

Richard C. Harpman

📍 Poland, OH: #31 of 94 inventorsTop 35%
🗺 Ohio: #30,338 of 73,341 inventorsTop 45%
Overall (All Time): #2,014,072 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9442102 Colorimetric oil testing apparatus and system — 2016-09-13
5996510 Corrugated cardboard pallet Charles P. Keip 1999-12-07