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). |
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Total properties:
1
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Patent #:
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Issue Dt:
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03/29/2022
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Application #:
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17036007
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Filing Dt:
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09/29/2020
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Publication #:
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Pub Dt:
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01/14/2021
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Title:
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Synergist for water-based drilling fluid and preparation method therefor, water-based drilling fluid and application thereof
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Assignee
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ROOM 3008, WEST 3RD FLOOR, BUILDING 3, NO. 27 |
CHUANGXIN ROAD, SCIENCE PARK, CHANGPING DISTRICT |
BEIJING, CHINA |
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Correspondence name and address
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QIANQIAN WU
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64 BANK ST
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ABINGTON, MA 02351
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05/13/2024 03:42 AM
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