MD

Marion P. Downs

📍 Denver, CO: #1,715 of 4,554 inventorsTop 40%
🗺 Colorado: #17,029 of 40,980 inventorsTop 45%
Overall (All Time): #2,287,818 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5428998 Method and apparatus for testing an infant for hearing defects — 1995-07-04
5291785 Method and apparatus for testing an infant for hearing defects — 1994-03-08