JF

John H. Free

DI Dart Industries: 3 patents #114 of 354Top 35%
📍 West Bend, WI: #133 of 449 inventorsTop 30%
🗺 Wisconsin: #13,258 of 40,088 inventorsTop 35%
Overall (All Time): #1,685,996 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
D261348 Ribbed coffee urn lid Leo A. Groh, Douglas D. Ludwig, David L. Painter 1981-10-20
D261215 Coffee urn lid Leo A. Groh, Douglas D. Ludwig, David L. Painter 1981-10-13
D255085 Yogurt maker David L. Painter 1980-05-27