Assignee
EST GROUP INC
US9 patents
Top patents by PatentIndex Score
US5797431AAug 25, 1998
Inner diameter pipe plug
EST GROUP INC113 citations90
US5676174AOct 14, 1997
Outer diameter pipe plug
EST GROUP INC52 citations84
US9664588B2May 30, 2017
Gripper for test and isolation plugs
EST GROUP INC9 citations75
US9823155B2Nov 21, 2017
Test plug for a pipe elbow
EST GROUP INC5 citations67
US6675634B2Jan 13, 2004
Branch pipe/tank nozzle test plug and method of use
EST GROUP INC12 citations62
US11965619B2Apr 23, 2024
Heat exchanger tube plug installation
EST GROUP INC0 citations59
US11788663B2Oct 17, 2023
Heat exchanger tube plug installation
EST GROUP INC0 citations59
US10488295B2Nov 26, 2019
Pneumatic test gun with self-actuating restraining elements
EST GROUP INC1 citations55
US11448352B1Sep 20, 2022
Plug assembly
EST GROUP INC0 citations47