DC

David B. Coston

📍 Crossville, IL: #2 of 3 inventorsTop 70%
🗺 Illinois: #48,934 of 84,256 inventorsTop 60%
Overall (All Time): #3,987,415 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4713744 Fractional frequency converter using zero switching of input frequency halfwaves — 1987-12-15