Inventor

HERTZOG RUSSEL

US2 patents

Patents

2 patents

US9267359B2Feb 23, 2016

Method and apparatus for interrogating a subterranean annulus

SMAARDYK JOHN EDWARD7 citations73

US8878126B2Nov 4, 2014

Method for inspecting a subterranean tubular

SMAARDYK JOHN EDWARD1 citations41