Patent Assignment Abstract of Title
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Total Assignments:
6
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Patent #:
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Issue Dt:
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05/11/2010
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Application #:
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12218831
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Filing Dt:
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07/18/2008
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Publication #:
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Pub Dt:
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01/21/2010
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Inventor:
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James Shamburger
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Title:
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METHOD AND APPARATUS FOR SELECTIVELY LEACHING PORTIONS OF PDC CUTTERS USED IN DRILL BITS
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 14902 SOMMERMEYER ST., SUITE 100 |
| HOUSTON, TEXAS 77041 |
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| WILLIAM E. JOHNSON, JR. |
| THE MATTHEWS FIRS |
| 2800 BERING DRIVE, SUITE 700 |
| HOUSTON, TEXAS 77057 |
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Assignment:
2
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 14902 SOMMERMEYER STREET, SUITE 100 |
| HOUSTON, TEXAS 77041 |
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| THE MATTHEWS FIRM |
| 2000 BERING DRIVE |
| SUITE 700 |
| HOUSTON, TX 77057 |
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Assignment:
3
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ADDRESS CHANGED AND CORRECTION FOR ASSIGNMENT RECORDED AT REEL/FRAME 024051/0219.
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| P.O. BOX 173 |
| KINGSTON CHAMBERS |
| ROAD TOWN, TORTOLA, VIRGIN ISLANDS, BRITISH |
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| JACOB S. MATTIS |
| THE MATTHEWS FIRM |
| 2000 BERING DRIVE, SUITE 700 |
| HOUSTON, TEXAS 77057 |
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Assignment:
4
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CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
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| P.O. BOX 173 |
| KINGSTON CHAMBERS |
| ROAD TOWN, VIRGIN ISLANDS, BRITISH |
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| TERRY L. MCCUTCHEON |
| 2000 BERING DRIVE |
| SUITE 700 |
| HOUSTON, TX 77057 |
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Assignment:
5
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SECURITY INTEREST (SEE DOCUMENT FOR DETAILS).
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| 3003 TASMAN DRIVE |
| SANTA CLARA, CALIFORNIA 95054 |
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| DLA PIPER LLP (US) |
| 4365 EXECUTIVE DRIVE, SUITE 1100 |
| SAN DIEGO, CA 92121 |
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Assignment:
6
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RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS).
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| 10613 W. SAM HOUSTON PKWY. N., SUITE 600 |
| HOUSTON, TEXAS 77064 |
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| SHANNON BERTINO |
| 2001 ROSS AVENUE, STE 3900 |
| DALLAS, TX 75201 |
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