LC

Leif Christensen

3M: 2 patents #84 of 952Top 9%
📍 Windom, MN: #20 of 214 inventorsTop 10%
🗺 Minnesota: #240 of 2,841 inventorsTop 9%
Overall (1994): #26,714 of 165,921Top 20%
2
Patents 1994

Issued Patents 1994

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5315006 Method of preparing polycyclic diamines Gary J. Drtina 1994-05-24
5310910 Polycyclic diamines Gary J. Drtina 1994-05-10