RD

Robert W. Derrow

JO Johnson Outdoors: 4 patents #19 of 117Top 20%
Overall (All Time): #1,241,515 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7755974 Side scan sonar imaging system with enhancement David A. Betts, David J. Howells 2010-07-13
7729203 Side scan sonar imaging system with associated GPS data David A. Betts, David J. Howells 2010-06-01
7710825 Side scan sonar imaging system with boat position on display David A. Betts, David J. Howells 2010-05-04
7652952 Sonar imaging system for mounting to watercraft David A. Betts, David J. Howells 2010-01-26