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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08/21/2012
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Application #:
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29405117
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Filing Dt:
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10/28/2011
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Inventors:
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Gregory Andrigo, Alfredo Sanchez
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Title:
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CASING CENTRALIZER
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 1810 BANKS DRIVE |
| WEATHERFORD, TEXAS 75087 |
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| ALAN N. HERDA |
| HAYNES AND BOONE, LLP |
| 2323 VICTORY AVENUE, SUITE 700 |
| DALLAS, TX 75219 |
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Assignment:
2
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MERGER (SEE DOCUMENT FOR DETAILS).
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| 10613 W. SAM HOUSTON PKWY. N., SUITE 600 |
| HOUSTON, TEXAS 77064 |
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| DAVID C. LEE |
| 2001 K STREET, N.W. |
| ROBERT S. STRAUSS TOWER |
| WASHINGTON, DC 20006 |
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Assignment:
3
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SUPPLEMENT NO. 1 TO AMENDED AND RESTATED TRADEMARK AND PATENT SECURITY AGREEMENT
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| 2100 ROSS AVE. |
| SUITE 1850 |
| DALLAS, TEXAS 75201 |
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| HOLLAND & KNIGHT LLP |
| 10 ST. JAMES AVE. |
| 11TH FLOOR |
| BOSTON, MA 02116 |
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Assignment:
4
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SECOND AMENDED AND RESTATED TRADEMARK AND PATENT SECURITY AGREEMENT
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| 500 FIRST AVENUE |
| PITTSBURG, PENNSYLVANIA 15219 |
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| HOLLAND & KNIGHT LLP |
| 10 ST. JAMES AVE. |
| 11TH FLOOR |
| BOSTON, MA 02116 |
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