SC

Stephen Christoffersen

Overall (All Time): #2,195,973 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6813949 Pipeline inspection system Richard Masaniello, Dennis Johnston, Arthur Turner, John Broussard, John Kiefner 2004-11-09
4563427 Corrosion test assembly Mark D. Weiss 1986-01-07