Inventor

MAINZER JEFFERY W

US2 patents

Patents

2 patents

US10914389B2Feb 9, 2021

High pressure detachable/retractable stopper plug

OPERATIONS TECH DEVELOPMENT NFP0 citations50

US10801657B2Oct 13, 2020

Detachable system to shut off pressure flow in pipes

OPERATIONS TECH DEVELOPMENT NFP0 citations41