Assignee
NSERTASEAL CORP
US5 patents
Top patents by PatentIndex Score
US5505500AApr 9, 1996
Apparatus for preventing generation of fugitive emissions at a drain site
NSERTASEAL CORP30 citations86
US5192156AMar 9, 1993
Drain apparatus with liquid trap
NSERTASEAL CORP13 citations72
US5015371AMay 14, 1991
Safety device for sealing a drain assembly
NSERTASEAL CORP14 citations72
US7216670B1May 15, 2007
Drain apparatus with liquid trap and liquid level indicator
NSERTASEAL CORP8 citations64
US5197510AMar 30, 1993
Apparatus for checking back pressure
NSERTASEAL CORP4 citations45