DH

Douglas Horn

📍 Kansas City, MO: #451 of 1,876 inventorsTop 25%
🗺 Missouri: #6,609 of 23,789 inventorsTop 30%
Overall (All Time): #1,634,896 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5938767 Electronic information lockout system — 1999-08-17
5661786 Electronic information lockout device — 1997-08-26
4811964 Wheelchair propelled by rowing — 1989-03-14