EH

Edward R. Helman

SU Supreme: 1 patents #9 of 16Top 60%
📍 Baltimore, MD: #2,529 of 4,923 inventorsTop 55%
🗺 Maryland: #19,431 of 35,612 inventorsTop 55%
Overall (All Time): #4,032,759 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4442827 Solar heat collector Herbert A. Helman, Henry B. Holtschneider, Sidney P. Buford, Donald C. Fava, Jeffrey N. Christopher 1984-04-17