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Patent Assignment Abstract of Title
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Total Assignments: 2
Patent #:
10577891
Issue Dt:
03/03/2020
Application #:
15307006
Filing Dt:
10/27/2016
Publication #:
20170175489
Pub Dt:
06/22/2017
Inventors:
Cheng ZHAI, LEI QIN, Jizhao XU, Zongqing TANG, Shiliang WU, Chao ZHONG
Title:
using horizontal directional drilling and liquid nitrogen cyclic freeze-thaw process to improve permeability in gas drainage
Assignment: 1
Reel/Frame:
040149/0413Recorded: 10/27/2016Pages: 7
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
ZHAI, CHENG
Exec Dt:
08/15/2016
QIN, LEI
Exec Dt:
08/15/2016
XU, JIZHAO
Exec Dt:
08/15/2016
TANG, ZONGQING
Exec Dt:
08/15/2016
WU, SHILIANG
Exec Dt:
08/15/2016
ZHONG, CHAO
Exec Dt:
08/15/2016
Assignee:
SCIENCE ACADEMY OF CHINA UNIVERSITY OF MINING AND TECHNOLOGY
NO. 1 UNIVERSITY ROAD
JIANGSHU PROVINCE
XUZHOU, CHINA 221116
Correspondent:
TREASURE IP GROUP
106 OAKLAND PL
LOS GATOS, CA 95032
Assignment: 2
Reel/Frame:
044957/0295Recorded: 12/25/2017Pages: 9
Conveyance:
CORRECTIVE ASSIGNMENT TO CORRECT THE NAME OF THE ASSIGNEE PREVIOUSLY RECORDED ON REEL 040149 FRAME 0413. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT.
Assignors:
ZHAI, CHENG
Exec Dt:
08/15/2016
QIN, LEI
Exec Dt:
08/15/2016
XU, JIZHAO
Exec Dt:
08/15/2016
TANG, ZONGQING
Exec Dt:
08/15/2016
WU, SHILIANG
Exec Dt:
08/15/2016
ZHONG, CHAO
Exec Dt:
08/15/2016
Assignee:
CHINA UNIVERSITY OF MINING AND TECHNOLOGY
NO.1 UNIVERSITY ROAD
JIANGSU PROVINCE
XUZHOU, CHINA 221116
Correspondent:
CATHERINE YE
106 OAKLAND PL
LOS GATOS, CA 95032

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