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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02/24/2015
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Application #:
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13521522
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Filing Dt:
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01/04/2013
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Publication #:
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Pub Dt:
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04/25/2013
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Inventors:
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Guoan Zhang, Jianlong Cheng, Xianhong Sun
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Title:
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COMBINED FRACTURING AND PERFORATING METHOD AND DEVICE FOR OIL AND GAS WELL
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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NO. 70 KEJI ROAD, HIGH-TECH DEVELOPMENT ZONE |
SUITE D301, TANGYUE BUILDING |
XI'AN, SHAANXI, CHINA 710075 |
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LAW OFFICES OF ALBERT WAI-KIT CHAN, PLLC |
141-07 20TH AVENUE |
SUITE 604 WORLD PLAZA |
WHITESTONE, NY 11357 |
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