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Click below for detailed party information:

Inventors

Robert Lance Cook David Paul Brisco R. Bruce Stewart Lev Ring Richard Carl Haut Robert Donald Mack

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ENVENTURE GLOBAL TECHNOLOGY, LLC

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SHELL OIL COMPANY, Assignor

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WELLBORE CASING

09/852,026 | U.S. Patent Application

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Location FILE REPOSITORY (FRANCONIA)

Filed May 9, 2001

Examiner PATRICK F BRINSON

Class 138

Art Group 3752

Patent No. 6,561,227

Case Type Utility - 138/098000

Status Patented Case

Parent 09/454,139 Patented

Parent 60/111,293 Expired

Child 10/418,687 Patented

Child 10/938,788 Patented

Child 10/303,992 Patented

Child 10/491,709 Patented

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Last Updated: 6 years, 2 months ago

Date	#	Transaction
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WELLBORE CASING

09/852,026 | U.S. Patent Application

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