Patent Assignment Details
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For pending or abandoned applications please consult USPTO staff.
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| Reel/Frame: | 060331/0268 | |
| Pages: | 3 |
| | Recorded: | 06/28/2022 | | |
| Attorney Dkt #: | 38136-1898001 |
| 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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NONE
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Issue Dt:
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Application #:
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17850363
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Filing Dt:
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06/27/2022
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Publication #:
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Pub Dt:
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12/28/2023
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Title:
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QUATERNARY AMMONIUM SALTS AS PRIMARY VISCOSIFIER FOR INVERT-EMULSION DRILLING FLUIDS
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Assignee
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| 1 EASTERN AVENUE |
| DHAHRAN, SAUDI ARABIA 31311 |
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Correspondence name and address
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NATHAN E. STACY
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FISH & RICHARDSON P.C.
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P.O.BOX 1022
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MINNEAPOLIS, MN 55440-1022
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05/29/2024 07:44 PM
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