MH

Margaret A. Hartfel

3M: 1 patents #357 of 1,132Top 35%
📍 Minneapolis, MN: #85 of 351 inventorsTop 25%
🗺 Minnesota: #1,405 of 4,663 inventorsTop 35%
Overall (2004): #163,678 of 270,089Top 65%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6820824 Apparatus for spraying liquids, disposable containers and liners suitable for use therewith Stephen C. P. Joseph, Malcolm F. Douglas, Alan F. Butler, David R. Bastow, Jerry E. Salhus 2004-11-23