Richard A. De Wall

📍 Dayton, OH: #1,048 of 1,892 inventorsTop 60%

🗺 Ohio: #42,657 of 73,341 inventorsTop 60%

Overall (All Time): #4,112,234 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4203945	Bubble oxygenator	—	1980-05-20