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Johnny K. Sparks

3M: 1 patents #7,233 of 11,543Top 65%
📍 White Bear Lake, MN: #358 of 561 inventorsTop 65%
🗺 Minnesota: #32,449 of 52,454 inventorsTop 65%
Overall (All Time): #3,809,088 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5357335 Optical detection device for screening magnetic tape Roger Jeffrey Anderson, Michael K. Hoel 1994-10-18