Patent Assignment Abstract of Title
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Total Assignments:
4
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Patent #:
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Issue Dt:
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01/29/2013
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Application #:
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12882344
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Filing Dt:
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09/15/2010
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Publication #:
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Pub Dt:
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03/24/2011
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Inventor:
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Christian Leuchtenberg
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Title:
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METHOD OF DRILLING A SUBTERRANEAN BOREHOLE
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 1 EASTERN AVENUE |
| DHAHRAN, SAUDI ARABIA 31311 |
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| BRACEWELL & GIULIANI LLP |
| P.O. BOX 61389 |
| HOUSTON, TX 77208-1389 |
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Assignment:
2
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CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE PREVIOUSLY RECORDED ON REEL 025479 FRAME 0234. ASSIGNOR(S) HEREBY CONFIRMS THE SAUDI ARABIAN OIL COMPANY 1 EASTERN AVENUE DHAHRAN, SAUDI ARABIA 31311.
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| 30 BIDEFORD ROAD, 18TH FLOOR, THONG SIA BUILDING |
| ORCHARD, SINGAPORE 229922 |
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| BRACEWELL & GIULIANI LLP |
| P. O. BOX 61389 |
| HOUSTON, TX 77002 |
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Assignment:
3
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CORRECTIVE ASSIGNMENT TO CORRECT THE CORRECTIVE ASSIGNMENT TO RE-RECORD ASSIGNEE'S ADDRESS PREVIOUSLY RECORDED ON REEL 025573 FRAME 0358. ASSIGNOR(S) HEREBY CONFIRMS THE TO MANAGED PRESSURE OPERATIONS PTE LTD., 1 MARITIME SQUARE, #12-04A, HARBOUR FRONT CENTRE, SINGAPORE, SINGAPORE 099253.
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| 1 MARITIME SQUARE, #12-04A |
| HARBOUR FRONT CENTRE |
| SINGAPORE, SINGAPORE 099253 |
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| BRACEWELL & GIULIANI LLP |
| 711 LOUISIANA ST |
| STE 2300 |
| HOUSTON, TX 77002 |
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Assignment:
4
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 7909 PARKWOOD CIRCLE DRIVE |
| C/O NATIONAL OILWELL VARCO, L.P. |
| HOUSTON, TEXAS 77036 |
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| THOT PATENT |
| P.O. BOX 10 17 56 |
| RATINGEN, 40837 GERMANY |
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