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Reel/Frame:063334/0801   Pages: 4
Recorded: 04/15/2023
Attorney Dkt #:18006-000055-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Total properties: 1
1
Patent #:
Issue Dt:
12/05/2023
Application #:
18116423
Filing Dt:
03/02/2023
Title:
Quaternary Ammonium Salt And Preparation Method And Use Thereof As Inhibitor, And Water-Based Drilling Fluid And Use Thereof
Assignors
1
Exec Dt:
02/07/2023
2
Exec Dt:
02/07/2023
3
Exec Dt:
02/07/2023
4
Exec Dt:
02/07/2023
Assignees
1
NO. 1, NANHUAN ROAD
JINGZHOU, CHINA 434000
2
NO. 111, LIAOYUAN ROAD
JINGZHOU, CHINA 434000
Correspondence name and address
HARNESS, DICKEY & PIERCE, P.L.C.
5445 CORPORATE DRIVE
SUITE 200
TROY, MI 48098

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