RD

Robert A. DeFrancesco

UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Methuen, MA: #154 of 259 inventorsTop 60%
🗺 Massachusetts: #56,664 of 88,656 inventorsTop 65%
Overall (All Time): #3,931,975 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4845486 Residential fuel-oil level reporting and alarm system John D. Knight, Robert D. Shapiro, Frank Banks, Andrew Mitchell, Barry S. Sunray 1989-07-04