DJ

David W. Johnson

📍 Hastings, MN: #1 of 14 inventorsTop 8%
🗺 Minnesota: #100 of 2,841 inventorsTop 4%
Overall (1994): #14,081 of 165,921Top 9%
3
Patents 1994

Issued Patents 1994

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5319901 Bifurcated column joint system for electrical transmission tower W. Brandt Goldsworthy, George Korzeniowski 1994-06-14
5285612 Interlocking joint with notch reinforcement 1994-02-15
5285613 Pultruded joint system and tower structure made therewith W. Brandt Goldsworthy 1994-02-15