Inventor

STIKKERS DAVID E

US3 patents

Patents

3 patents

US5405171AApr 11, 1995

Dual gasket lined pipe connector

UNION OIL CO127 citations93

US5649568AJul 22, 1997

Glass fiber reinforced cement liners for pipelines and casings

UNION OIL CO19 citations90

US5566986AOct 22, 1996

Dual gasket lined pipe connector

UNION OIL CO11 citations68