HM

Howard J. McElroy

II Iowa Precision Industries: 1 patents #2 of 4Top 50%
MS Met-Coil System: 1 patents #6 of 10Top 60%
TL The Lockformer: 1 patents #4 of 12Top 35%
📍 Cedar Rapids, IA: #478 of 1,358 inventorsTop 40%
🗺 Iowa: #4,661 of 15,303 inventorsTop 35%
Overall (All Time): #1,662,895 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5165730 Duct joining system — 1992-11-24
5069484 Duct joining system — 1991-12-03
4466641 Duct connecting system Robert R. Heilman 1984-08-21