RJ

Roy Trence Johnson

TE Tekni-Plex: 2 patents #11 of 40Top 30%
Overall (All Time): #2,107,752 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7954791 Fine bubble airlift device William S. Mitchell 2011-06-07
7622040 Fine bubble airlift device William S. Mitchell, Roland Schmidt 2009-11-24