-
-
-
Pressure pulse well tool
-
Patent number 9,494,006
-
Issue date Nov 15, 2016
-
Smith International, Inc.
-
Brian Mohon
-
E21 - EARTH DRILLING MINING
-
Multiple sealing element assembly
-
Patent number 8,820,747
-
Issue date Sep 2, 2014
-
Smith International, Inc.
-
Alberto Zubia
-
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
-
Ball drop module
-
Patent number 8,789,602
-
Issue date Jul 29, 2014
-
Smith International, Inc.
-
William C. Gill
-
E21 - EARTH DRILLING MINING
-
-
-
-
-