Ronald J. O'Brien

📍 Gardner, MA: #35 of 68 inventorsTop 55%

🗺 Massachusetts: #56,664 of 88,656 inventorsTop 65%

Overall (All Time): #3,613,458 of 4,157,543Top 90%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
D423238	Portable picnic table and benches	—	2000-04-25