Patent US3351136 - CASTING CENTRALIZER AND WELL BORE WIPER

Citing Patent	Filing date	Issue date	Original Assignee	Title
US3982590	4 Aug 1975	28 Sep 1976	Halliburton Company	Well bore cleaning device
US4595058	28 Aug 1984	17 Jun 1986	Shell Oil Company	Turbulence cementing sub
US5002139	12 Jul 1989	26 Mar 1991	Hawera Probst GmbH & Co.	Drilling tool
US5335723	29 Jun 1993	9 Aug 1994	Atlantic Richfield Company	Combination scratcher-centralizer for wellbore casings
US5507346	30 Jan 1995	16 Apr 1996	Halliburton Company	Composite well flow conductor
US7743829	23 Oct 2003	29 Jun 2010	Downhole Products plc	Cement flow control tool

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