DE

Dean A. Ersfeld

3M: 2 patents #34 of 563Top 7%
📍 Maplewood, MN: #4 of 33 inventorsTop 15%
🗺 Minnesota: #129 of 2,022 inventorsTop 7%
Overall (1989): #29,169 of 140,708Top 25%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4856502 Curable resin coated sheets having reduced tack Paul E. Hansen, Matthew T. Scholz, Dennis C. Bartizal, Katherine E. Reed, Wayne K. Larson +2 more 1989-08-15
4841958 Nonwoven orthopedic casting materials with apertures Paul E. Hansen 1989-06-27