Ronald T. Chapman

📍 Hempstead, NY: #20 of 59 inventorsTop 35%

🗺 New York: #67,335 of 115,490 inventorsTop 60%

Overall (All Time): #3,839,443 of 4,157,543Top 95%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
D341965	Portable back rest	—	1993-12-07