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Patent Assignment Abstract of Title
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Total Assignments: 1
Patent #:
11313192
Issue Dt:
04/26/2022
Application #:
16607068
Filing Dt:
10/21/2019
Publication #:
20200040682
Pub Dt:
02/06/2020
Inventors:
Qiaorong Han, Xu Ma, Yangming Hu, Xianwen Li, Yanming Zhang, Zhanguo Ma, Changjing Zhou et al
Title:
METHOD FOR LOWERING OIL PIPE IN GAS WELL WITHOUT WELL-KILLING, SOLUBLE BRIDGE PLUG AND MATERIAL PREPARATION METHOD THEREOF
Assignment: 1
Reel/Frame:
050795/0667Recorded: 10/22/2019Pages: 14
Conveyance:
ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors:
LI, XIANWEN
Exec Dt:
09/17/2019
HAN, QIAORONG
Exec Dt:
09/17/2019
ZHANG, YANMING
Exec Dt:
09/17/2019
MA, XU
Exec Dt:
09/17/2019
MA, ZHANGUO
Exec Dt:
09/17/2019
HU, YANGMING
Exec Dt:
09/17/2019
ZHOU, CHANGJING
Exec Dt:
09/17/2019
XIAO, YUANXIANG
Exec Dt:
09/17/2019
SHI, HUAQIANG
Exec Dt:
09/17/2019
CHEN, BAOCHUN
Exec Dt:
09/17/2019
GU, YONGHONG
Exec Dt:
09/17/2019
WEN, XIAOYONG
Exec Dt:
09/17/2019
LAI, XUAN'ANG
Exec Dt:
09/17/2019
DING, YONG
Exec Dt:
09/17/2019
YE, LIANG
Exec Dt:
09/17/2019
ZHAO, QIANYUN
Exec Dt:
09/17/2019
MA, XINXING
Exec Dt:
09/17/2019
WANG, YAJUAN
Exec Dt:
09/17/2019
BI, MAN
Exec Dt:
09/17/2019
SHI, HUA
Exec Dt:
09/17/2019
HE, MINGFANG
Exec Dt:
09/17/2019
LIU, XIAORUI
Exec Dt:
09/17/2019
GAO, WEI
Exec Dt:
09/17/2019
LI, HONGYING
Exec Dt:
09/17/2019
LING, YUN
Exec Dt:
09/17/2019
HAO, RUIFEN
Exec Dt:
09/17/2019
SHEN, LEI
Exec Dt:
09/17/2019
SU, GUOHUI
Exec Dt:
09/17/2019
ZHOU, SHAOWEI
Exec Dt:
09/17/2019
LI, SHUSHENG
Exec Dt:
09/17/2019
LI, ZHE
Exec Dt:
09/17/2019
Assignee:
PETROCHINA COMPANY LIMITED
9 DONGZHIMEN NORTH STREET
DONGCHENG DISTRICT
BEIJING, CHINA 100007
Correspondent:
WEAVER AUSTIN VILLENEUVE & SAMPSON LLP
P. O. BOX 70250
OAKLAND, CA 94612-0250

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