Patent Assignment Details
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| Reel/Frame: | 069319/0040 | |
| Pages: | 5 |
| | Recorded: | 11/19/2024 | | |
| Attorney Dkt #: | 35742.04202 |
| 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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04/08/2025
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Application #:
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18951901
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Filing Dt:
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11/19/2024
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Title:
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HIGH DENSITY ENVIRONMENTALLY FRIENDLY POLYMER WATER-BASED DRILLING FLUID WITH RESISTANCE TO 240°C AND SATURATED SALTS, PREPARATION METHOD THEREFOR AND USE THEREOF
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Assignee
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| NO. 66, WEST CHANGJIANG ROAD |
| HUANGDAO DISTRICT |
| QINGDAO, CHINA 266580 |
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Correspondence name and address
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YIZHOU LIU
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CALFEE, HALTER & GRISWOLD LLP
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THE CALFEE BUILDING, 1405 EAST SIXTH STREET
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CLEVELAND, OH 44114
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