DS

David E. Snead

3S 3D Systems: 4 patents #79 of 374Top 25%
Overall (All Time): #1,278,215 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6333741 Boolean layer comparison slice Dennis R. Smalley, Adam L. Cohen, Joseph W. Allison, Thomas J. Vorgitch, Thomas P. Chen 2001-12-25
5854748 Boolean layer comparison slice Dennis R. Smalley, Adam L. Cohen, Joseph W. Allison, Thomas J. Vorgitch, Thomas P. Chen 1998-12-29
5481470 Boolean layer comparison slice Dennis R. Smalley, Adam L. Cohen, Joseph W. Allison, Thomas J. Vorgitch, Thomas P. Chen 1996-01-02
5321622 Boolean layer comparison slice Dennis R. Smalley, Adam L. Cohen, Joseph W. Allison, Thomas J. Vorgitch, Thomas P. Chen 1994-06-14