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Patent Assignment Details
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Reel/Frame:059062/0415   Pages: 4
Recorded: 02/22/2022
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Total properties: 1
1
Patent #:
Issue Dt:
03/29/2022
Application #:
17036007
Filing Dt:
09/29/2020
Publication #:
Pub Dt:
01/14/2021
Title:
Synergist for water-based drilling fluid and preparation method therefor, water-based drilling fluid and application thereof
Assignors
1
Exec Dt:
09/25/2020
2
Exec Dt:
09/25/2020
3
Exec Dt:
09/25/2020
4
Exec Dt:
09/25/2020
5
Exec Dt:
09/25/2020
6
Exec Dt:
09/25/2020
7
Exec Dt:
09/25/2020
8
Exec Dt:
09/25/2020
9
Exec Dt:
09/25/2020
10
Exec Dt:
09/25/2020
Assignee
1
ROOM 3008, WEST 3RD FLOOR, BUILDING 3, NO. 27
CHUANGXIN ROAD, SCIENCE PARK, CHANGPING DISTRICT
BEIJING, CHINA
Correspondence name and address
QIANQIAN WU
64 BANK ST
ABINGTON, MA 02351

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