RH

Robert Helfman

📍 Franklin, MI: #23 of 110 inventorsTop 25%
🗺 Michigan: #15,670 of 86,293 inventorsTop 20%
Overall (All Time): #895,017 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
4744182 Modular building structure and method Sheldon Shacket 1988-05-17
4631893 Single story house addition structure and method Sheldon Shacket 1986-12-30
4480420 Dormer structure and method Sheldon Shacket 1984-11-06
4449334 Dormer structure and method Sheldon Shacket 1984-05-22
4439959 Residential building construction 1984-04-03
4437273 Truss construction 1984-03-20