Patent Assignment Abstract of Title
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Total Assignments:
2
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Patent #:
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Issue Dt:
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03/30/2021
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Application #:
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16619661
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Filing Dt:
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12/05/2019
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Publication #:
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Pub Dt:
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02/25/2021
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Inventors:
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Sirui CHEN, Longwei QIU, Yangchen ZHANG, Xiyu QU, Xiaofang DONG, Guanmin WANG
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Title:
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ACIDIZING SOLUTION FOR DISSOLUTION OF CLAY MINERAL AND PREPARATION METHOD THEREOF
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| NO. 66, WEST CHANGJIANG ROAD |
| HUANGDAO DISTRICT |
| QINGDAO, SHANGDONG, CHINA 266580 |
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| SZDC LAW P.C. |
| 1629 K STREET N.W. |
| SUITE 300 |
| WASHINGTON, DC 20006 |
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Assignment:
2
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 300 METERS EAST OF INTERSECTION OF XIER ROAD AND DEZHOU ROAD |
| XINDAN STREET, DONGYING DISTRICT |
| DONGYING CITY, SHANDONG, CHINA 257000 |
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| FENG SHAN |
| 1629 K STREET NW, SUITE 300 |
| SZDC LAW PC |
| WASHINGTON, DC 20006 |
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