JG

John J. Grasseschi

🗺 Massachusetts: #27,608 of 88,656 inventorsTop 35%
Overall (All Time): #1,300,794 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4892116 Plumbing sealing system 1990-01-09
4756332 Plumbing sealing system 1988-07-12
4706702 Plumbing sealing system 1987-11-17
4706759 Sprinkler assembly 1987-11-17