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Patent Assignment Assignee Details
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Assignee Name : CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
Total Assignments: 24
Assignment: 1
Reel/Frame:048360/0105   Pages: 3
Recorded: 02/18/2019
Attorney Dkt #:212033-0002-US01
Conveyance: CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Assignor
1
CNPC DRILLING RESEARCH INSTITUTE COMPANY LIMITED
Exec Dt:
01/16/2018
Assignee
1
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
NO.1 BUILDING, NO.5 COURTYARD,
HUANGHE STREET, CHANGPING DISTRICT,
BEIJING, CHINA 102206
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10641067
US20180202267
15744129
Correspondence name and address
MICHAEL BEST & FRIEDRICH LLP (MKE)
100 EAST WISCONSIN AVENUE
SUITE 3300
MILWAUKEE, WI 53202
Assignment: 2
Reel/Frame:049067/0836   Pages: 4
Recorded: 05/02/2019
Attorney Dkt #:212033-0003-US01
Conveyance: CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Assignor
1
CNPC DRILLING RESEARCH INSTITUTE COMPANY LIMITED
Exec Dt:
01/16/2018
Assignee
1
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
NO.1 BUILDING, NO.5 COURTYARD,
HUANGHE STREET, CHANGPING DISTRICT,
BEIJING, CHINA 102206
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10808496
US20180313186
15864716
Correspondence name and address
MICHAEL BEST & FRIEDRICH LLP
100 E WISCONSIN AVENUE
SUITE 3300
MILWAUKEE, WI 53202
Assignment: 3
Reel/Frame:047555/0022   Pages: 5
Recorded: 11/20/2018
Attorney Dkt #:RAP3-PT116
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
YANG, YUPING
Exec Dt:
11/19/2018
2
LIU, JINGPING
Exec Dt:
11/19/2018
3
LI, LONG
Exec Dt:
11/19/2018
4
LI, DONGYANG
Exec Dt:
11/19/2018
5
ZHANG, WEI
Exec Dt:
11/19/2018
6
GUO, LEI
Exec Dt:
11/19/2018
Assignees
1
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
BLDG. 1, YARD 5, HUANGHE STREET,
CHANGPING DISTRICT
BEIJING, CHINA 102206
2
CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
NO. 66, CHANGJIANG WEST ROAD, HUANGDAO DISTRICT
SHANDONG PROVINCE
QINGDAO, CHINA 266580
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10745605
US20200115611
16196399
Correspondence name and address
VOLPE AND KOENIG, P.C.
UNITED PLAZA
30 SOUTH 17TH STREET, 18TH FLOOR
PHILADELPHIA, PA 19103
Assignment: 4
Reel/Frame:047555/0077   Pages: 5
Recorded: 11/20/2018
Attorney Dkt #:RAP3-PT118
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
YANG, YUPING
Exec Dt:
11/19/2018
2
LIU, JINGPING
Exec Dt:
11/19/2018
3
CHANG, MIN
Exec Dt:
11/19/2018
4
LI, LONG
Exec Dt:
11/19/2018
5
WANG, JINHONG
Exec Dt:
11/19/2018
6
ZHANG, YAN
Exec Dt:
11/19/2018
7
SUN, JINSHENG
Exec Dt:
11/19/2018
Assignees
1
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
BLDG. 1, YARD 5, HUANGHE STREET,
CHANGPING DISTRICT
BEIJING, CHINA 102206
2
CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
NO. 66, CHANGJIANG WEST ROAD, HUANGDAO DISTRICT
SHANDONG PROVINCE
QINGDAO, CHINA 266580
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11053424
US20200115613
16196511
Correspondence name and address
VOLPE AND KOENIG, P.C.
DUANE MORRIS PLAZA
30 SOUTH 17TH STREET, 18TH FLOOR
PHILADELPHIA, PA 19103
Assignment: 5
Reel/Frame:047555/0106   Pages: 5
Recorded: 11/20/2018
Attorney Dkt #:RAP3-PT117
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
YANG, YUPING
Exec Dt:
11/19/2018
2
LIU, JINGPING
Exec Dt:
11/19/2018
3
WANG, YING
Exec Dt:
11/19/2018
4
LI, LONG
Exec Dt:
11/19/2018
5
ZHANG, YAN
Exec Dt:
11/19/2018
6
LIU, YUSHUANG
Exec Dt:
11/19/2018
7
FANG, PINGLIANG
Exec Dt:
11/19/2018
8
HAO, WEIWEI
Exec Dt:
11/19/2018
9
ZHANG, WEI
Exec Dt:
11/19/2018
Assignees
1
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
BLDG. 1, YARD 5, HUANGHE STREET,
CHANGPING DISTRICT
BEIJING, CHINA 102206
2
CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
NO. 66, CHANGJIANG WEST ROAD, HUANGDAO DISTRICT
SHANDONG PROVINCE
QINGDAO, CHINA 266580
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11060009
US20200115612
16196456
Correspondence name and address
VOLPE AND KOENIG, P.C.
DUANE MORRIS PLAZA
30 SOUTH 17TH STREET, 18TH FLOOR
PHILADELPHIA, PA 19103
Assignment: 6
Reel/Frame:048196/0875   Pages: 7
Recorded: 01/30/2019
Attorney Dkt #:BSY-1046 (GAI17CN4389-US)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, HUA
Exec Dt:
01/25/2019
2
JIN, JIANZHOU
Exec Dt:
01/25/2019
3
LIU, SHUOQIONG
Exec Dt:
01/25/2019
4
QI, FENGZHONG
Exec Dt:
01/25/2019
5
YU, YONGJIN
Exec Dt:
01/25/2019
6
XU, MING
Exec Dt:
01/25/2019
7
YUAN, JINPING
Exec Dt:
01/25/2019
8
DING, ZHIWEI
Exec Dt:
01/25/2019
9
ZHOU, CHONGFENG
Exec Dt:
01/25/2019
10
ZHANG, CHI
Exec Dt:
01/25/2019
11
LIU, ZISHUAI
Exec Dt:
01/25/2019
12
FENG, YUSI
Exec Dt:
01/25/2019
13
GUO, YUCHAO
Exec Dt:
01/25/2019
Assignees
1
CHINA NATIONAL PETROLEUM CORPORATION
9 DONGZHIMEN NORTH STREET
DONGCHENG DISTRICT
BEIJING, CHINA
2
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
NO. 1 BUILDING, NO. 5 COURTYARD
HUANGHE STREET, CHANGPING DISTRICT
BEIJING, CHINA 102206
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11618844
US20190241792
16260055
Correspondence name and address
LOZA & LOZA LLP
305 NORTH SECOND AVE., #127
UPLAND, CA 91786-6064
Assignment: 7
Reel/Frame:048939/0803   Pages: 7
Recorded: 04/19/2019
Attorney Dkt #:RAP3-PT143
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, QUANLI
Exec Dt:
01/31/2019
2
YIN, HONGWEI
Exec Dt:
01/31/2019
3
LI, WANJUN
Exec Dt:
01/31/2019
4
GUO, HUIJUAN
Exec Dt:
01/31/2019
5
LIU, GUOJUN
Exec Dt:
01/31/2019
6
XU, BINGGUI
Exec Dt:
01/31/2019
7
CHEN, GANG
Exec Dt:
01/31/2019
8
ZHU, YINGJIE
Exec Dt:
01/31/2019
9
WANG, GANG
Exec Dt:
01/31/2019
10
ZHOU, SHAOHUA
Exec Dt:
01/31/2019
11
LIU, ZHITONG
Exec Dt:
01/31/2019
12
YU, YONGLIANG
Exec Dt:
01/31/2019
13
HE, MINGMIN
Exec Dt:
01/31/2019
14
JIA, TAO
Exec Dt:
01/31/2019
15
WANG, JIANI
Exec Dt:
01/31/2019
16
LV, MINGJIE
Exec Dt:
01/31/2019
17
HE, FEI
Exec Dt:
01/31/2019
Assignee
1
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
BUILDING 1, YARD 5, HUANGHE STREET, CHANGPING DISTRICT
BEIJING, CHINA 102206
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10858917
US20200332629
16389188
Correspondence name and address
VOLPE AND KOENIG, P.C.
30 SOUTH 17TH STREET, 18TH FLOOR
PHILADELPHIA, PA 19103
Assignment: 8
Reel/Frame:050422/0632   Pages: 5
Recorded: 09/19/2019
Attorney Dkt #:GBJY033
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHENG, XIAOWEI
Exec Dt:
06/06/2019
2
LONG, DAN
Exec Dt:
06/06/2019
3
MEI, KAIYUAN
Exec Dt:
06/06/2019
4
LIU, KAIQIANG
Exec Dt:
06/06/2019
5
ZHANG, GAOYIN
Exec Dt:
06/06/2019
6
QIN, DAN
Exec Dt:
06/06/2019
7
GAO, XIANSHU
Exec Dt:
06/06/2019
8
JIN, JIANZHOU
Exec Dt:
06/06/2019
9
WEN, ZHAIJUN
Exec Dt:
06/06/2019
10
YU, YONGJIN
Exec Dt:
06/06/2019
11
ZHANG, CHUNMEI
Exec Dt:
06/06/2019
12
LI, ZAOYUAN
Exec Dt:
06/06/2019
13
ZHANG, XINGGUO
Exec Dt:
06/06/2019
14
GUO, XIAOYANG
Exec Dt:
06/06/2019
Assignees
1
SOUTHWEST PETROLEUM UNIVERSITY
NO.8 XINDU AVENUE, XINDU DISTRICT CHENGDU, SICHUAN
CHENGDU, CHINA
2
CHINA ACADEMY OF BUILDING RESEARCH
NO. 1 GUANZHUANG DONGLI, CHAOYANG DISTRICT, BEIJING
BEIJING, CHINA
3
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
BUILDING 1, NO. 5, HUANGHE STREET, CHANGPING DISTRICT, BEIJING
BEIJING, CHINA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10975284
US20200071594
16495391
Correspondence name and address
GOKALP BAYRAMOGLU
1540 W. WARM SPRINGS ROAD SUITE 100
HENDERSON, NV 89014
Assignment: 9
Reel/Frame:050425/0947   Pages: 5
Recorded: 09/19/2019
Attorney Dkt #:GBJY032
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHENG, XIAOWEI
Exec Dt:
06/06/2019
2
QIN, DAN
Exec Dt:
06/06/2019
3
MEI, KAIYUAN
Exec Dt:
06/06/2019
4
LIU, KAIQIANG
Exec Dt:
06/06/2019
5
ZHANG, GAOYIN
Exec Dt:
06/06/2019
6
GAO, XIANSHU
Exec Dt:
06/06/2019
7
JIN, JIANZHOU
Exec Dt:
06/06/2019
8
WEN, ZHAIJUN
Exec Dt:
06/06/2019
9
YU, YONGJIN
Exec Dt:
06/06/2019
10
ZHANG, CHUNMEI
Exec Dt:
06/06/2019
11
LI, ZAOYUAN
Exec Dt:
06/06/2019
12
ZHANG, XINGGUO
Exec Dt:
06/06/2019
13
GUO, XIAOYANG
Exec Dt:
06/06/2019
Assignees
1
SOUTHWEST PETROLEUM UNIVERSITY
NO.8 XINDU AVENUE, XINDU DISTRICT CHENGDU, SICHUAN
CHENGDU, CHINA 610500
2
CHINA ACADEMY OF BUILDING RESEARCH
NO. 1 GUANZHUANG DONGLI, CHAOYANG DISTRICT, BEIJING
BEIJING, CHINA
3
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
BUILDING 1, NO. 5, HUANGHE STREET, CHANGPING DISTRICT, BEIJING
BEIJING, CHINA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10876945
US20200011777
16495390
Correspondence name and address
GOKALP BAYRAMOGLU
1540 W. WARM SPRINGS ROAD SUITE 100
HENDERSON, NV 89014
Assignment: 10
Reel/Frame:052291/0982   Pages: 5
Recorded: 04/02/2020
Attorney Dkt #:35742.04036
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
Exec Dt:
01/25/2020
Assignees
1
CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
NO. 66, CHANGJIANG WEST ROAD
HUANGDAO DISTRICT, QINGDAO
SHANDONG, CHINA
2
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
BUILDING 1, YARD 5, HUANGHE STREET
CHANGPING DISTRICT
BEIJING, CHINA 102206
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
9771509
NONE
15400520
 
9701884
NONE
15400547
 
9683160
NONE
15400555
 
10392552
US20180208823
15809590
 
10040984
US20180208824
15809707
Correspondence name and address
YIZHOU LIU
CALFEE, HALTER & GRISWOLD LLP
1405 EAST SIXTH STREET
CLEVELAND, OH 44114-1607
Assignment: 11
Reel/Frame:052459/0095   Pages: 13
Recorded: 04/21/2020
Attorney Dkt #:5253.1035-001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LIU, SHUOQIONG
Exec Dt:
04/10/2020
2
ZHANG, HUA
Exec Dt:
04/10/2020
3
JIN, JIANZHOU
Exec Dt:
04/10/2020
4
XU, MING
Exec Dt:
04/10/2020
5
YU, YONGJIN
Exec Dt:
04/10/2020
6
QI, FENGZHONG
Exec Dt:
04/10/2020
7
QU, CONGFENG
Exec Dt:
04/10/2020
8
YUE, HONG
Exec Dt:
03/31/2020
9
ZHENG, YOUCHENG
Exec Dt:
03/31/2020
10
LI, WEI
Exec Dt:
03/31/2020
11
MA, YONG
Exec Dt:
03/31/2020
12
ZHENG, YOUZHI
Exec Dt:
03/31/2020
13
HUANG, ZHAO
Exec Dt:
04/10/2020
14
YUAN, JINPING
Exec Dt:
04/10/2020
15
DING, ZHIWEI
Exec Dt:
04/10/2020
16
ZHOU, CHONGFENG
Exec Dt:
04/10/2020
17
ZHANG, CHI
Exec Dt:
04/10/2020
18
LIU, ZISHUAI
Exec Dt:
04/10/2020
19
JI, HONGFEI
Exec Dt:
04/10/2020
20
GUO, YUCHAO
Exec Dt:
04/10/2020
21
XIA, XIUJIAN
Exec Dt:
04/10/2020
22
LI, YONG
Exec Dt:
04/10/2020
23
SHEN, JIYUN
Exec Dt:
04/10/2020
24
LIU, HUITING
Exec Dt:
04/10/2020
25
FENG, YUSI
Exec Dt:
04/10/2020
26
LYU, BIN
Exec Dt:
04/10/2020
Assignees
1
PETROCHINA COMPANY LIMITED
9 DONGZHIMEN NORTH STREET
DONGCHENG DISTRICT
BEIJING, CHINA 100007
2
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
NO. 1 BUILDING, NO. 5 COURTYARD, HUANGHE STREET
CHANGPING DISTRICT
BEIJING, CHINA 102206
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11926787
US20200399525
16854376
Correspondence name and address
ALICE O. CARROLL
530 VIRGINIA ROAD, P.O. BOX 9133
HAMILTON, BROOK, SMITH & REYNOLDS, P.C.
CONCORD, MA 01742-9133
Assignment: 12
Reel/Frame:052681/0644   Pages: 5
Recorded: 05/18/2020
Attorney Dkt #:35742.04083 35742.04084
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
JIANGHAN MACHINERY RESEARCH INSTITUTE LIMITED COMPANY OF CNPC
Exec Dt:
04/21/2020
Assignees
1
JIANGHAN MACHINERY RESEARCH INSTITUTE LIMITED COMPANY OF CNPC
NO. 12, CHIHU ROAD SHASHI DISTRICT
JINGZHOU
HUBEI, CHINA 434000
2
CHINA NATIONAL PETROLEUM CORPORATION
9 DONGZHIMEN NORTH STREET
DONGCHENG DISTRICT
BEIJING, CHINA
3
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
BUILDING 1, YARD 5, HUANGHE STREET
CHANGPING DISTRICT
BEIJING, CHINA
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
10309171
NONE
16140024
 
10329858
NONE
16140050
Correspondence name and address
YIZHOU LIU
CALFEE, HALTER & GRISWOLD LLP
1405 EAST SIXTH STREET
CLEVELAND, OH 44114-1607
Assignment: 13
Reel/Frame:053198/0857   Pages: 21
Recorded: 07/14/2020
Attorney Dkt #:RAP3-PT206
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, QUANLI
Exec Dt:
06/23/2020
2
XU, BINGGUI
Exec Dt:
06/23/2020
3
SHI, DEPEI
Exec Dt:
06/23/2020
4
YIN, HONGWEI
Exec Dt:
06/23/2020
5
GUO, HUIJUAN
Exec Dt:
06/23/2020
6
ZHAN, GUODONG
Exec Dt:
06/23/2020
7
LI, WANJUN
Exec Dt:
06/23/2020
8
GUO, JIANHUA
Exec Dt:
06/23/2020
9
ZHU, YINGJIE
Exec Dt:
06/23/2020
10
WANG, JIANLI
Exec Dt:
06/23/2020
11
JIA, TAO
Exec Dt:
06/23/2020
12
LV, MINGJIE
Exec Dt:
06/23/2020
13
YANG, YI
Exec Dt:
06/23/2020
14
YU, YONGLIANG
Exec Dt:
06/23/2020
15
ZHITONG, ZHITONG
Exec Dt:
06/23/2020
16
MING, RUIQING
Exec Dt:
06/23/2020
Assignees
1
CHINA NATIONAL PETROLEUM CORPORATION
NO.9 DONGZHIMEN NORTH STREET
DONGCHENG DISTRICT
BEIJING, CHINA
2
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
BUILDING 1#, YARD NO.5, HUANGHE STREET
SHAHE TOWN, CHANGPING DISTRICT
BEIJING, CHINA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11293254
US20210396092
16908898
Correspondence name and address
DOUGLAS J. BUCKLIN
30 SOUTH 17TH STREET
18TH FLOOR
PHILADELPHIA, PA 19103
Assignment: 14
Reel/Frame:053458/0387   Pages: 5
Recorded: 08/11/2020
Attorney Dkt #:35742.04038 04037 04060
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
Exec Dt:
07/17/2020
2
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
Exec Dt:
07/17/2020
Assignees
1
CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
NO. 66, CHANGJIANG WEST ROAD
HUANGDAO DISTRICT, QINGDAO
SHANDONG, CHINA
2
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
BUILDING 1, YARD 5, HUANGHE STREET
CHANGPING DISTRICT
BEIJING, CHINA 102206
3
CHINA NATIONAL PETROLEUM CORPORATION
NO. 9 DONGZHIMEN NORTH STREET
BEIJING, CHINA
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
9771509
NONE
15400520
 
9701884
NONE
15400547
 
9683160
NONE
15400555
 
10392552
US20180208823
15809590
 
10040984
US20180208824
15809707
Correspondence name and address
YIZHOU LIU
CALFEE, HALTER & GRISWOLD LLP
1405 EAST SIXTH STREET
CLEVELAND, OH 44114-1607
Assignment: 15
Reel/Frame:053582/0348   Pages: 8
Recorded: 08/24/2020
Attorney Dkt #:35742.04038 04037 04060
Conveyance: CORRECTIVE ASSIGNMENT TO CORRECT THE CORRECTING THE ORDER OF THE CONVEYANCE PARTY DATA PREVIOUSLY RECORDED AT REEL: 053458 FRAME: 0387. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT.
Assignors
1
CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
Exec Dt:
07/17/2020
2
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
Exec Dt:
07/17/2020
Assignees
1
CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
NO.66, WEST CHANGJIANG ROAD
HUANGDAO DISTRICT, QINGDAO
SHANDONG, CHINA
2
CHINA NATIONAL PETROLEUM CORPORATION
NO. 9 DONGZHIMEN NORTH STREET
BEIJING, CHINA
3
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
BUILDING 1, YARD 5, HUANGHE STREET
CHANGPING DISTRICT
BEIJING, CHINA 102206
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
9771509
NONE
15400520
 
9701884
NONE
15400547
 
9683160
NONE
15400555
 
10392552
US20180208823
15809590
 
10040984
US20180208824
15809707
Correspondence name and address
YIZHOU LIU
1405 EAST SIXTH STREET
CALFEE, HALTER & GRISWOLD LLP
CLEVELAND, OH 44114
Assignment: 16
Reel/Frame:054613/0768   Pages: 7
Recorded: 12/11/2020
Attorney Dkt #:RAP3-PT206
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HAN, FEI
Exec Dt:
12/04/2020
2
HOU, FUXIANG
Exec Dt:
12/04/2020
3
HU, ZHIJIAN
Exec Dt:
12/04/2020
Assignees
1
CHINA NATIONAL PETROLEUM CORPORATION
NO. 9 DONGZHIMEN NORTH STREET
DONGCHENG DISTRICT
BEIJING, CHINA
2
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
BUILDING 1#, YARD NO. 5
HUANGHE STREET
SHAHE TOWN, CHANGPING DISTRICT, CHINA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11293254
US20210396092
16908898
Correspondence name and address
VOLPE KOENIG
30 SOUTH 17TH STREET
PHILADELPHIA, PA 19103
Assignment: 17
Reel/Frame:055205/0359   Pages: 5
Recorded: 02/09/2021
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
DRILLING RESEARCH INSTITUTE OF CHINA NATIONAL PETROLEUM COMPANY
Exec Dt:
02/08/2021
Assignees
1
CHINA NATIONAL PETROLEUM CORPORATION
LIUPU KANG, XICHENG DISTRICT
BEIJING, CHINA 100120
2
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
NO. 5 HUANGHE STREET, CHANGPING DISTRICT
BUILDING 1
BEIJING, CHINA 102206
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
9759026
US20170138137
15418283
 
10408042
US20170138175
15418298
Correspondence name and address
JUN LU
1-708, BUILDING 5, 1 BEI QING ROAD, CHANGPING DIST
BEIJING, 102206 CHINA
Assignment: 18
Reel/Frame:055604/0328   Pages: 6
Recorded: 03/16/2021
Attorney Dkt #:291339US01_512279-12
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
JI, GUADONG
Exec Dt:
03/08/2021
2
WANG, HAIGE
Exec Dt:
03/08/2021
3
CUI, MENG
Exec Dt:
03/08/2021
4
MENG, ZHAO
Exec Dt:
03/08/2021
5
WU, QIANG
Exec Dt:
03/08/2021
6
LIU, LI
Exec Dt:
03/08/2021
7
ZHANG, JIAWEI
Exec Dt:
03/08/2021
8
CHEN, CHANGCHANG
Exec Dt:
03/08/2021
9
CUI, LIU
Exec Dt:
03/08/2021
10
YU, JING
Exec Dt:
03/08/2021
Assignee
1
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
BUILDING 1, NO. 5 HUANGHE STREET
CHANGPING DISTRICT
BEIJING, CHINA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11959375
US20210301643
17202584
Correspondence name and address
DORSEY & WHITNEY LLP
111 S. MAIN STREET
SUITE 2100
SALT LAKE CITY, UT 84111
Assignment: 19
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: 20
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
Assignment: 21
Reel/Frame:062741/0484   Pages: 4
Recorded: 02/13/2023
Attorney Dkt #:RAP3-PT143
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
Exec Dt:
01/03/2023
Assignees
1
CHINA NATIONAL PETROLEUM CORPORATION
NO. 9 DONGZHIMEN NORTH STREET
DONGCHENG DISTRICT
BEIJING, CHINA 100007
2
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
BUILDING 1, YARD 5, HUANGHE STREET
CHANGPING DISTRICT
BEIJING, CHINA 102206
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10858917
US20200332629
16389188
Correspondence name and address
VOLPE KOENIG
30 SOUTH 17TH STREET
PHILADELPHIA, PA 19103-4009
Assignment: 22
Reel/Frame:063599/0082   Pages: 7
Recorded: 05/10/2023
Attorney Dkt #:212033-0005-US01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, HUA
Exec Dt:
02/21/2023
2
JIN, JIANZHOU
Exec Dt:
02/21/2023
3
YU, YONGJIN
Exec Dt:
02/21/2023
4
QU, CONGFENG
Exec Dt:
02/21/2023
5
QI, FENGZHONG
Exec Dt:
02/21/2023
6
XU, MING
Exec Dt:
02/20/2023
7
LIU, SHUOQIONG
Exec Dt:
02/20/2023
8
WANG, ZHAOHUI
Exec Dt:
02/21/2023
9
GUO, YUCHAO
Exec Dt:
02/21/2023
10
LIU, JILIANG
Exec Dt:
02/21/2023
11
LYU, BIN
Exec Dt:
02/21/2023
12
DING, ZHIWEI
Exec Dt:
02/21/2023
13
ZHANG, CHI
Exec Dt:
02/21/2023
14
LIU, ZISHUAI
Exec Dt:
02/21/2023
15
JI, HONGFEI
Exec Dt:
02/21/2023
16
XIA, XIUJIAN
Exec Dt:
02/21/2023
17
LI, YONG
Exec Dt:
02/21/2023
18
ZHOU, CHONGFENG
Exec Dt:
02/20/2023
19
ZHANG, XIAOBING
Exec Dt:
02/21/2023
Assignees
1
CHINA NATIONAL PETROLEUM CORPORATION
9 DONGZHIMEN NORTH STREET, DONGCHENG DISTRICT
BEIJING, CHINA 100007
2
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
NO.1 BUILDING,NO.5 COURTYARD, HUANGHE STREET
CHANGPING DISTRICT
BEIJING, CHINA 102206
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20230278927
18315088
Correspondence name and address
MICHAEL BEST & FRIEDRICH LLP
790 N. WATER STREET, STE. 2500
MILWAUKEE, WI 53202
Assignment: 23
Reel/Frame:064530/0577   Pages: 9
Recorded: 08/09/2023
Attorney Dkt #:GAI20CN7871P-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHAO, ZHILIANG
Exec Dt:
06/09/2023
2
ZHANG, TIANYI
Exec Dt:
06/09/2023
3
WANG, SHUANGWEI
Exec Dt:
06/09/2023
4
LI, LONG
Exec Dt:
06/09/2023
5
ZHANG, JIE
Exec Dt:
06/08/2023
6
CHENG, RONGCHAO
Exec Dt:
06/08/2023
7
FENG, JIE
Exec Dt:
06/08/2023
Assignees
1
CHINA NATIONAL PETROLEUM CORPORATION
9 DONGZHIMEN NORTH STREET
DONGCHENG DISTRICT
BEIJING, CHINA
2
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
NO.1 BUILDING,NO.5 COURTYARD, HUANGHE STREET
CHANGPING DISTRICT
BEIJING, CHINA 102206
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20230365853
18354616
Correspondence name and address
HOFFMAN WARNICK LLC
540 BROADWAY
ALBANY, NY 12207
Assignment: 24
Reel/Frame:065745/0540   Pages: 6
Recorded: 12/04/2023
Attorney Dkt #:018241-000109
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
YUAN, GUANGJIE
Exec Dt:
07/04/2023
2
LI, JINGCUI
Exec Dt:
07/04/2023
3
XIA, YAN
Exec Dt:
07/04/2023
4
WAN, JIFANG
Exec Dt:
07/04/2023
5
JIN, GENTAI
Exec Dt:
07/04/2023
6
LI, GUOTAO
Exec Dt:
07/04/2023
7
ZHANG, HONG
Exec Dt:
07/04/2023
8
LIU, TIANEN
Exec Dt:
07/04/2023
9
FU, PAN
Exec Dt:
07/04/2023
10
PANG, YUHAN
Exec Dt:
07/04/2023
Assignees
1
PETROCHINA COMPANY LIMITED
9 DONGZHIMEN NORTH STREET, DONGCHENG DISTRICT
BEIJING, CHINA 100007
2
CNPC ENGINEERING TECHNOLOGY R&D COMPANY LIMITED
BUILDING 1, YARD 5, HUANGHE STREET, CHANGPING DISTRICT
BEIJING, CHINA 102206
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20240093599
18521195
Correspondence name and address
TUCKER ELLIS LLP
950 MAIN AVENUE
SUITE 1100
CLEVELAND, OH 44113

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