Patent Assignment Details
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For pending or abandoned applications please consult USPTO staff.
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Reel/Frame: | 047900/0917 | |
| Pages: | 9 |
| | Recorded: | 10/29/2018 | | |
Attorney Dkt #: | SA6083, SA6986 & SA6091 |
Conveyance: | CORRECTIVE ASSIGNMENT TO CORRECT THE SPELLING OF ASSIGNEE NAME PREVIOUSLY RECORDED AT REEL: 046840 FRAME: 0370. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. |
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Total properties:
3
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Patent #:
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Issue Dt:
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05/05/2020
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Application #:
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16055867
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Filing Dt:
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08/06/2018
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Publication #:
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Pub Dt:
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02/21/2019
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Title:
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OIL-BASED DRILLING FLUIDS FOR HIGH PRESSURE AND HIGH TEMPERATURE DRILLING OPERATIONS
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Patent #:
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Issue Dt:
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06/09/2020
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Application #:
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16055881
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Filing Dt:
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08/06/2018
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Publication #:
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Pub Dt:
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02/21/2019
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Title:
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OIL-BASED DRILLING FLUIDS FOR HIGH PRESSURE AND HIGH TEMPERATURE DRILLING OPERATIONS
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Patent #:
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Issue Dt:
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12/29/2020
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Application #:
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16055890
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Filing Dt:
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08/06/2018
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Publication #:
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Pub Dt:
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02/21/2019
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Title:
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THERMALLY STABLE SURFACTANTS FOR OIL BASED DRILLING FLUIDS
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Assignee
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DEPARTMENT OF CHEMISTRY |
SOUTH ROAD |
DURHAM, UNITED KINGDOM DH1 3LE |
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Correspondence name and address
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DINSMORE & SHOHL LLP
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FIFTH THIRD CENTER, ONE S. MAIN STREET
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SUITE 1300
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DAYTON, OH 45402
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