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John Schafer

BT Boston Medical Technologies: 1 patents #3 of 8Top 40%
📍 Minneapolis, MN: #1,588 of 6,114 inventorsTop 30%
🗺 Minnesota: #15,886 of 52,454 inventorsTop 35%
Overall (All Time): #1,199,237 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9803943 Firearm magazine guidance and ejection device Maura Schafer, Louis Papamihail 2017-10-31
6650932 Medical testing telemetry system Wayne Menzie, Keith Knapp, Alan M. Cohen 2003-11-18
5328027 Corrugated paperboard container Gene Hollar 1994-07-12
5050771 Repeatable pattern field spraying control Lowell D. Hanson 1991-09-24