Joseph W. Drapp

📍 Chesterfield, MO: #2,561 of 6,461 inventorsTop 40%

🗺 Missouri: #8,863 of 23,789 inventorsTop 40%

Overall (All Time): #2,355,159 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4547721	Transformer structure	—	1985-10-15
4470006	Transformer	—	1984-09-04