Inventor

MCKEACHNIE JOHN W

US3 patents

Patents

3 patents

US7896091B2Mar 1, 2011

Convertible seal

WEATHERFORD LAMB68 citations93

US7510018B2Mar 31, 2009

Convertible seal

WEATHERFORD LAMB84 citations93

US7434627B2Oct 14, 2008

Method and apparatus for friction reduction in a downhole tool

WEATHERFORD LAMB26 citations90