JH

John R. Hamm

RI Ray Industries: 1 patents #8 of 13Top 65%
Overall (All Time): #3,739,972 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5505644 Submerged marine exhaust system Frank B. Ousley, II, Douglas A. Keehn, Jr., William W. Powell 1996-04-09