DH

Dennis D. Holpfer

📍 Milwaukee, WI: #1,543 of 2,770 inventorsTop 60%
🗺 Wisconsin: #23,834 of 40,088 inventorsTop 60%
Overall (All Time): #3,478,162 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6731991 System for projecting light on a work surface to produce an image for tracing Michael Francis Michalski, Christopher Stuart 2004-05-04