Mark C. Downs

📍 Washington, DC: #1,663 of 3,063 inventorsTop 55%

🗺 District of Columbia: #1,663 of 3,063 inventorsTop 55%

Overall (All Time): #3,408,992 of 4,157,543Top 85%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
7005061	Drain filter device	Robert Downs	2006-02-28