US Patent 11530753 Double-valve continuous circulating valve with a clamping device

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Patent

Patent attributes

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

11530753

Date of Patent

December 20, 2022

Patent Application Number

17742274

Date Filed

May 11, 2022

Patent Citations Received

‌

US Patent 11952846 Rotational continuous circulation system

Patent Primary Examiner

CPC Code

The present invention discloses a novel double-valve continuous circulating valve with a clamping device, comprising a main through valve (

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