DH

David C. Howson

UN Unknown: 2 patents #56 of 2,033Top 3%
IZ Izi: 1 patents #3 of 4Top 75%
📍 Minneapolis, MN: #7 of 244 inventorsTop 3%
🗺 Minnesota: #100 of 2,841 inventorsTop 4%
Overall (1994): #14,089 of 165,921Top 9%
3
Patents 1994

Issued Patents 1994

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5368030 Non-invasive multi-modality radiographic surface markers Simion J. Zinreich, Eva S. Zinreich 1994-11-29
5314411 Catheterization system with universal retention device and method of use Steven F. Bierman 1994-05-24
5290248 Sideport connector for catherization system Steven F. Bierman 1994-03-01