US Patent 10550667 Isolation valve assembly
Patent 10550667 was granted and assigned to Cnpc Usa on February, 2020 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
October 23, 2017
Date of Patent
February 4, 2020
Patent Applicant
Patent Application Number
15791046
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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