FB

Frank Berkman

BB Bbn: 1 patents #5 of 31Top 20%
Overall (All Time): #3,519,640 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6604432 Soil compaction measurement William Hamblen, Bill G. Watters 2003-08-12