DH

David G. Hunziker

📍 Fort Scott, KS: #10 of 34 inventorsTop 30%
🗺 Kansas: #3,182 of 12,005 inventorsTop 30%
Overall (All Time): #1,567,819 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7708072 Accessories and method for hollow stem auger retraction — 2010-05-04
7690430 Well casing extraction accessories and method — 2010-04-06
7614463 Flute-wiping auger cleaner — 2009-11-10