Patent Assignment Abstract of Title
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Total Assignments:
1
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Patent #:
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Issue Dt:
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09/20/2022
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Application #:
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16953186
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Filing Dt:
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11/19/2020
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Publication #:
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Pub Dt:
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08/12/2021
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Inventors:
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Jinhua Cao, Michael Linley Fripp, Tor Sigve Saetre, Lonnie Carl Helms
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Title:
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REVERSE CEMENTING VALVE SYSTEM AND METHOD EMPLOYING A DOUBLE FLAPPER VALVE WITH SLIDING SLEEVE AND DRILLABLE NOSE
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 3000 N. SAM HOUSTON PARKWAY E. |
| HOUSTON, TEXAS 77032 |
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| POLSINELLI PC |
| 1000 LOUISIANA ST. |
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| HOUSTON, TX 77002 |
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