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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08/30/2011
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Application #:
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12256860
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Filing Dt:
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10/23/2008
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Publication #:
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Pub Dt:
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04/29/2010
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Inventor:
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Chung Chang
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Title:
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TWO WAY CHECK SHOT AND REVERSE VSP WHILE DRILLING
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| ONE HAMPSHIRE STREET |
| CAMBRIDGE, MASSACHUSETTS 02139 |
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| JAMES MCALEENAN |
| ONE HAMPSHIRE STREET |
| IP LEGAL DEPARTMENT |
| CAMBRIDGE, MA 02139 |
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