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Marlow D. Butler

PA Palmguard: 2 patents #2 of 2Top 100%
📍 Portland, OR: #4,612 of 9,213 inventorsTop 55%
🗺 Oregon: #12,654 of 28,073 inventorsTop 50%
Overall (All Time): #2,368,365 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4357597 Palm-positioning and system-actuating mechanism — 1982-11-02
4236082 Method and apparatus for recording image details of the palm of a hand — 1980-11-25