Patent Assignment Details
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| Reel/Frame: | 048443/0380 | |
| Pages: | 11 |
| | Recorded: | 02/26/2019 | | |
| Attorney Dkt #: | RAP3-PT127 |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). |
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Total properties:
1
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Patent #:
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Issue Dt:
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11/26/2019
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Application #:
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16285783
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Filing Dt:
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02/26/2019
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Title:
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EXPANDABLE PLUGGING AGENT AND PREPARATION METHOD THEREOF, MICRO-CAPSULE PLUGGING AGENT, WATER-BASED DRILLING FLUID, AND USE THEREOF
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Assignee
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| 8 XINDU AVENUE |
| XINDU DISTRICT |
| CHENGDU CITY, SICHUAN PROVINCE, CHINA 610500 |
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Correspondence name and address
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VOLPE AND KOENIG, P.C.
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30 S. 17TH STREET
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18TH FLOOR
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PHILADELPHIA, PA 19103
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