Inventor

LOCKSTEDT ALAN

US3 patents

Patents

3 patents

US7201241B2Apr 10, 2007

Self relieving seal

SMITH INTERNATIONAL10 citations82

US6976548B2Dec 20, 2005

Self relieving seal

SMITH INTERNATIONAL13 citations82

US7387178B2Jun 17, 2008

Self relieving seal

SMITH INTERNATIONAL5 citations71