DH

Daniel T. Hoffman

SF Sport Fun: 1 patents #3 of 13Top 25%
Overall (All Time): #3,532,322 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6666743 Spinning top Carrie L. Polare, Paul B. Thomas, Robert Leventhal 2003-12-23