DH

David C. Hempfling

Illinois Tool Works: 1 patents #2,292 of 4,258Top 55%
📍 Chicago, IL: #7,538 of 13,327 inventorsTop 60%
🗺 Illinois: #48,934 of 84,256 inventorsTop 60%
Overall (All Time): #3,427,357 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7101134 Fastener having multiple lobed thread Kenneth LeVey 2006-09-05