DJ

Danny A. Johnson

BR Basic Resources: 2 patents #6 of 40Top 15%
Overall (All Time): #2,197,027 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6832623 Gas meter valve and method James Powell 2004-12-21
6651486 Standup pressure testing device and method Richard Shelton 2003-11-25