DH

Daniel C. Helsel

UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Hollsopple, PA: #3 of 6 inventorsTop 50%
🗺 Pennsylvania: #30,495 of 74,527 inventorsTop 45%
Overall (All Time): #2,224,519 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6206183 Painter's box — 2001-03-27
D302912 Label box display case — 1989-08-22