MK

Michael J. Knowd

3M: 3 patents #4,214 of 11,543Top 40%
📍 Vadnais Heights, MN: #91 of 216 inventorsTop 45%
🗺 Minnesota: #19,064 of 52,454 inventorsTop 40%
Overall (All Time): #1,676,761 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4706282 Decoder for a recorder-decoder system — 1987-11-10
4706293 Circuitry for characterizing speech for tamper protected recording — 1987-11-10
4257273 Sound pressure level meter — 1981-03-24