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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01/14/1992
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Application #:
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07418059
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Filing Dt:
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10/06/1989
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Inventors:
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MENGXIAN DING, ZUGIANG WANG, ZHENGHUA YANG, JING ZHANG
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Title:
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PROCESS FOR THE PREPARATION OF 3,3',4,4'-BIPHENYLTETRACARBOXYLIC ACID AND ITS DERIVATIVES
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| AN INSTITUTE OF THE PEOPLES REPUBLIC OF CHINA |
| CHANGCHUN, CHINA |
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| ARTHUR S. COOKFAIR |
| OCCIDENTAL CHEMICAL CORPORATION |
| 2801 LONG ROAD |
| GRAND ISLAND, NY. 14072 |
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