DH

Duane H. Hart

3M: 3 patents #4,214 of 11,543Top 40%
📍 Windom, MN: #1,009 of 2,819 inventorsTop 40%
🗺 Minnesota: #19,064 of 52,454 inventorsTop 40%
Overall (All Time): #1,671,751 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4868229 Storage-stable polymerizable composition 1989-09-19
4789012 Injection head for filling dispenser that meters proportionate increments of dissimilar materials 1988-12-06
4747517 Dispenser for metering proportionate increments of polymerizable materials 1988-05-31