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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11/29/2022
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Application #:
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16960790
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Filing Dt:
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07/08/2020
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Publication #:
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Pub Dt:
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03/04/2021
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Inventors:
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Stephen A. Yeldell, Frank Acosta, Min M. Yuan, Lonnie C. Helms, Kevin W. Ardoin
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Title:
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Downhole Check Valve Assembly with a Ratchet Mechanism
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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 77032-3219 |
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| CHAMBERLAIN HRDLICKA HALLIBURTON ENERGY |
| 1200 SMITH ST., 14TH FLOOR |
| HOUSTON, TX 77002 |
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