DH

David G. Hackbarth

UC U.S. Controls: 1 patents #4 of 5Top 80%
📍 New Berlin, WI: #8 of 24 inventorsTop 35%
🗺 Wisconsin: #541 of 2,194 inventorsTop 25%
Overall (1997): #163,461 of 185,788Top 90%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5594220 Rotary switch with cam operated sliding contact engaging noble metal stationary contact bar surface Kenyon A. Hapke, Spencer C. Schantz 1997-01-14