HK

Haven L. Keller

PA Pangborn: 2 patents #2 of 14Top 15%
📍 Hagerstown, MD: #72 of 223 inventorsTop 35%
🗺 Maryland: #13,387 of 35,612 inventorsTop 40%
Overall (All Time): #2,316,385 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D316717 Reversible vane for a throwing wheel James H. Carpenter 1991-05-07
4739937 Apparatus for conditioning granular material James H. Carpenter, Jerry L. Godwin, Donald G. Corderman 1988-04-26