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Assignee Name : CNPC CHUANQING DRILLING ENGINEERING COMPANY LIMITED
Total Assignments: 4
Assignment: 1
Reel/Frame:036846/0990   Pages: 5
Recorded: 10/21/2015
Attorney Dkt #:20087.0002.NPUS00
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MA, GUANG CHANG
Exec Dt:
10/21/2015
2
XIAO, FENG FENG
Exec Dt:
10/21/2015
Assignee
1
CNPC CHUANQING DRILLING ENGINEERING COMPANY LIMITED
NO. 3, BLOCK 1, FUQING ROAD
CHENGDU, SICHUAN PROVINCE, CHINA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10072197
US20170101573
14878754
Correspondence name and address
ELIZABETH WILLIAMS
5020 MONTROSE BLVD.
SUITE 750
HOUSTON, TX 77006
Assignment: 2
Reel/Frame:054739/0158   Pages: 9
Recorded: 12/23/2020
Attorney Dkt #:69000-004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HAN, LIEXIANG
Exec Dt:
12/21/2020
2
CHEN, ZUO
Exec Dt:
12/21/2020
3
LIU, BIN
Exec Dt:
12/21/2020
4
YANG, XIAOFENG
Exec Dt:
12/21/2020
5
YU, SHENG
Exec Dt:
12/21/2020
6
YAO, JIANLIN
Exec Dt:
12/21/2020
7
ZHOU, GANG
Exec Dt:
12/21/2020
8
FENG, MING
Exec Dt:
12/21/2020
9
DONG, SHIMING
Exec Dt:
12/21/2020
10
YAO, KUNPENG
Exec Dt:
12/21/2020
11
LI, WEICHENG
Exec Dt:
12/21/2020
12
LI, LEI
Exec Dt:
12/21/2020
13
FU, XIAOPING
Exec Dt:
12/21/2020
14
LYU, ZHIJUN
Exec Dt:
12/21/2020
15
CHEN, WENCAI
Exec Dt:
12/21/2020
16
LI, YONG
Exec Dt:
12/21/2020
Assignees
1
CNPC CHUANQING DRILLING ENGINEERING COMPANY LIMITED
NO. 6 MENGZHUIWAN STREET, CHENGHUA DISTRICT, SICHUAN
CHENGDU, CHINA
2
CCDC PETROLEUM DRILLING & PRODUCTION TECHNOLOGY CO LTD
SOUTH SECTION 2, ZHONGSHAN AVENUE, SICHUAN
GUANG HAN, CHINA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11225837
US20210198950
17132397
Correspondence name and address
WPAT, PC INTELLECTUAL PROPERTY ATTORNEYS
8230 BOONE BLVD, SUITE 405
VIENNA, VA 22182
Assignment: 3
Reel/Frame:061626/0647   Pages: 7
Recorded: 10/07/2022
Attorney Dkt #:35742.04152
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
JIANG, GUANCHENG
Exec Dt:
07/04/2022
2
HE, YINBO
Exec Dt:
07/04/2022
3
DONG, TENGFEI
Exec Dt:
07/04/2022
4
PENG, CHUNYAO
Exec Dt:
07/04/2022
5
YANG, LILI
Exec Dt:
07/04/2022
6
LUO, XIAOHU
Exec Dt:
07/04/2022
7
LUO, XUWU
Exec Dt:
07/04/2022
8
LIANG, XING
Exec Dt:
07/04/2022
9
TAN, BIN
Exec Dt:
07/04/2022
10
WANG, YONG
Exec Dt:
07/04/2022
11
FU, DAQI
Exec Dt:
07/04/2022
12
GENG, TIE
Exec Dt:
07/04/2022
13
RAN, QIHUA
Exec Dt:
07/04/2022
14
LIU, XIAOBO
Exec Dt:
07/04/2022
15
CHENG, RONGCHAO
Exec Dt:
07/04/2022
16
WANG, ZENGLIN
Exec Dt:
07/04/2022
17
CHEN, GANG
Exec Dt:
07/04/2022
18
ZHU, HONGHAO
Exec Dt:
07/04/2022
19
LI, YIZHENG
Exec Dt:
07/04/2022
20
ZHAO, LI
Exec Dt:
07/04/2022
21
CUI, KAIXIAO
Exec Dt:
07/04/2022
Assignees
1
CHINA UNIVERSITY OF PETROLEUM (BEIJING)
NO. 18 FUXUE ROAD
CHANGPING DISTRICT
BEIJING, CHINA 102249
2
CNPC CHUANQING DRILLING ENGINEERING COMPANY LIMITED
MENG ZHUIWAN STREET NO. 6
CHENGUA DISTRICT, CHENGDU CITY
SICHUAN, CHINA 610051
3
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
NO. 1 BUILDING, NO. 5 COURT
HUANGHE ROAD, CHANGPING DISTRICT
BEIJING, CHINA 102206
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11686190
US20230026538
17864224
Correspondence name and address
YIZHOU LIU
CALFEE, HALTER & GRISWOLD LLP
1405 EAST SIXTH STREET
CLEVELAND, OH 44114-1607
Assignment: 4
Reel/Frame:063305/0912   Pages: 7
Recorded: 04/12/2023
Attorney Dkt #:35742.04155
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
JIANG, GUANCHENG
Exec Dt:
12/27/2022
2
SUN, JINSHENG
Exec Dt:
12/27/2022
3
HE, YINBO
Exec Dt:
12/27/2022
4
ZHANG, XIN
Exec Dt:
12/27/2022
5
PENG, CHUNYAO
Exec Dt:
12/27/2022
6
DONG, TENGFEI
Exec Dt:
12/27/2022
7
TAN, BIN
Exec Dt:
12/27/2022
8
GENG, TIE
Exec Dt:
12/27/2022
9
YANG, LILI
Exec Dt:
12/27/2022
10
LUO, XIAOHU
Exec Dt:
12/27/2022
11
LUO, XUWU
Exec Dt:
12/27/2022
12
LIANG, XING
Exec Dt:
12/27/2022
13
CHEN, CHANGWEI
Exec Dt:
12/27/2022
14
LIU, XIAOBO
Exec Dt:
12/27/2022
15
CHENG, RONGCHAO
Exec Dt:
12/27/2022
16
LUO, JIANSHENG
Exec Dt:
12/27/2022
17
ZHANG, JIANGUO
Exec Dt:
12/27/2022
18
WANG, YONG
Exec Dt:
12/27/2022
19
FU, DAQI
Exec Dt:
12/27/2022
20
RAN, QIFA
Exec Dt:
12/27/2022
21
ZHAO, LI
Exec Dt:
12/27/2022
22
CUI, KAIXIAO
Exec Dt:
12/27/2022
23
NI, XIAOXIAO
Exec Dt:
12/27/2022
Assignees
1
CHINA UNIVERSITY OF PETROLEUM (BEIJING)
NO. 18 FUXUE ROAD
CHANGPING DISTRICT
BEIJING, CHINA 102249
2
CNPC CHUANQING DRILLING ENGINEERING COMPANY LIMITED
MENG ZHUIWAN STREET NO. 6
CHENGUA DISTRICT, CHENGDU CITY
SICHUAN, CHINA 610051
3
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
NO. 1 BUILDING, NO. 5 COURT
HUANGHE ROAD, CHANGPING DISTRICT
BEIJING, CHINA 102206
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11787990
US20230133053
18148939
Correspondence name and address
YIZHOU LIU
CALFEE, HALTER & GRISWOLD LLP
1405 EAST SIXTH STREET
CLEVELAND, OH 44114-1607

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