US Patent 10302218 Drill stem safety valve actuator
Patent 10302218 was granted and assigned to Hi-Kalibre Equipment Ltd. on May, 2019 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
June 16, 2016
Date of Patent
May 28, 2019
Patent Applicant
Patent Application Number
15184848
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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