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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04/25/2023
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Application #:
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17039909
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Filing Dt:
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09/30/2020
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Publication #:
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Pub Dt:
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09/09/2021
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Inventors:
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Jianguo Yao, Guofu Ren, Siwen Guo, Changqing Feng, Penggang Huang, Xiaowei Xue, Zhiguo Wang et al
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Title:
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METAL-BASED DISSOLVABLE BALL SEAT, SETTING SYSTEM AND SETTING METHOD
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
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| 9 DONGZHIMEN NORTH STREET |
| DONGCHENG DISTRICT |
| BEIJING, CHINA 100007 |
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| HAMILTON, BROOK, SMITH & REYNOLDS, P.C. |
| 530 VIRGINIA ROAD |
| P.O. BOX 9133 |
| CONCORD, MA 01742-9133 |
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