RE

Robert C. Elfers

AR Aro: 1 patents #29 of 92Top 35%
IN Ingersoll-Rand: 1 patents #412 of 828Top 50%
📍 Bryan, OH: #38 of 109 inventorsTop 35%
🗺 Ohio: #30,338 of 73,341 inventorsTop 45%
Overall (All Time): #2,279,335 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5584666 Reduced icing air valve Nicholas Kozumplik, Jr. 1996-12-17
D370488 Diaphragm pump Nicholas Kozumplik, Jr., Douglas D. Purdy 1996-06-04