Howard D. Brown

📍 Hagerstown, MD: #113 of 223 inventorsTop 55%

🗺 Maryland: #19,431 of 35,612 inventorsTop 55%

Overall (All Time): #3,963,142 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4785632	Solar energy concentrator	—	1988-11-22