DH

Donald F. Hagen

3M: 4 patents #14 of 952Top 2%
📍 Woodbury, MN: #6 of 109 inventorsTop 6%
🗺 Minnesota: #45 of 2,841 inventorsTop 2%
Overall (1994): #6,547 of 165,921Top 4%
4
Patents 1994

Issued Patents 1994

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5340746 Composite reactive articles for the determination of cyanide Louis C. Haddad, Robert E. Perkins, Craig G. Markell 1994-08-23
5328758 Particle-loaded nonwoven fibrous article for separations and purifications Craig G. Markell, Paul E. Hansen, Nicholas R. Baumann 1994-07-12
5300714 Method of purifying saturated fluoroperhalocarbon liquids Venkateswarlu Pothapragada, Robert B. Fletcher, Frederick E. Behr 1994-04-05
5279742 Solid phase extraction medium Craig G. Markell, James D. Luedtke 1994-01-18