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Patent Assignment Assignor Details
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Assignor Name : QIN, XIAOFEI
Total Assignments: 22
Assignment: 1
Reel/Frame:015765/0037   Pages: 3
Recorded: 09/07/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WOLFINBARGER, JR., LLOYD
Exec Dt:
07/20/2004
2
QIN, XIAOFEI
Exec Dt:
07/20/2004
Assignee
1
LIFENET
5809 WARD COURT
VIRGINIA BEACH, VIRGINIA 23455
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7494811
US20050002910
10835529
Correspondence name and address
WILMER CUTLER PICKERING HALE, ET AL.
MARIA L. MAEBIUS
1455 PENNSYLVANIA AVE., N.W.
WASHINGTON, DC 20004
Assignment: 2
Reel/Frame:020840/0701   Pages: 4
Recorded: 04/22/2008
Attorney Dkt #:067949-5027
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHEN, SILVIA S.
Exec Dt:
04/15/2008
2
QIN, XIAOFEI
Exec Dt:
04/15/2008
3
CHEN, JINGSONG
Exec Dt:
04/15/2008
4
WOLFINBARGER, LLOYD, JR.
Exec Dt:
04/14/2008
Assignee
1
LIFENET HEALTH
1864 CONCERT DRIVE
VIRGINIA BEACH, VIRGINIA 23453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9744043
US20090024223
11826518
Correspondence name and address
SALLY P. TENG
1111 PENNSYLVANIA AVENUE, N.W.
MORGAN LEWIS & BOCKIUS LLP
WASHINGTON, DC 20004
Assignment: 3
Reel/Frame:020840/0758   Pages: 5
Recorded: 04/22/2008
Attorney Dkt #:067949-5029
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHEN, SILVIA S.
Exec Dt:
04/15/2008
2
QIN, XIAOFEI
Exec Dt:
04/15/2008
3
CHEN, JINGSONG
Exec Dt:
04/15/2008
4
WOLFINBARGER, LLOYD, JR.
Exec Dt:
04/14/2008
5
MOORE, MARK
Exec Dt:
04/15/2008
6
THOMAS, RONY
Exec Dt:
04/15/2008
7
LINTHURST JONES, ALYCE
Exec Dt:
04/15/2008
Assignee
1
LIFENET HEALTH
1864 CONCERT DRIVE
VIRGINIA BEACH, VIRGINIA 23453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9125743
US20090024229
11826523
Correspondence name and address
SALLY P. TENG
1111 PENNSYLVANIA AVENUE, N.W.
MORGAN LEWIS & BOCKIUS LLP
WASHINGTON, DC 20004
Assignment: 4
Reel/Frame:020843/0932   Pages: 4
Recorded: 04/23/2008
Attorney Dkt #:067949-5028
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHEN, SILVIA S.
Exec Dt:
04/15/2008
2
QIN, XIAOFEI
Exec Dt:
04/15/2008
3
CHEN, JINGSONG
Exec Dt:
04/15/2008
4
WOLFINBARGER, LLOYD, JR.
Exec Dt:
04/14/2008
Assignee
1
LIFENET HEALTH
1864 CONCERT DRIVE
VIRGINIA BEACH, VIRGINIA 23453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20080077251
11826522
Correspondence name and address
SALLY P. TENG
1111 PENNSYLVANIA AVENUE, N.W.
MORGAN LEWIS & BOCKIUS LLP
WASHINGTON, DC 20004
Assignment: 5
Reel/Frame:020853/0381   Pages: 4
Recorded: 04/22/2008
Attorney Dkt #:067949-5030
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHEN, SILVIA S.
Exec Dt:
04/15/2008
2
QIN, XIAOFEI
Exec Dt:
04/15/2008
3
CHEN, JINGSONG
Exec Dt:
04/15/2008
4
WOLFINBARGER, LLOYD, JR.
Exec Dt:
04/14/2008
Assignee
1
LIFENET HEALTH
1864 CONCERT DRIVE
VIRGINIA BEACH, VIRGINIA 23453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20090024224
11826530
Correspondence name and address
SALLY P. TENG
1111 PENNSYLVANIA AVENUE, N.W.
MORGAN LEWIS & BOCKIUS LLP
WASHINGTON, DC, DC 20004
Assignment: 6
Reel/Frame:021345/0738   Pages: 3
Recorded: 08/06/2008
Attorney Dkt #:067949-5022
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WOLFINBARGER, LLOYD, JR.
Exec Dt:
07/30/2008
2
QIN, XIAOFEI
Exec Dt:
07/31/2008
Assignee
1
LIFENET HEALTH
1864 CONCERT DRIVE
VIRGINIA BEACH, VIRGINIA 23453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9080141
US20070105222
11518566
Correspondence name and address
SALLY P. TENG
MORGAN, LEWIS & BOCKIUS LLP
1111 PENNSYLVANIA AVENUE, N.W.
WASHINGTON, DC 20004
Assignment: 7
Reel/Frame:030152/0112   Pages: 4
Recorded: 04/04/2013
Attorney Dkt #:067949-5039
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
QIN, XIAOFEI
Exec Dt:
11/16/2012
2
CHEN, SILVIA
Exec Dt:
11/17/2012
3
CHEN, JINGSONG
Exec Dt:
11/20/2012
4
CLAGETT, JAMES A.
Exec Dt:
10/24/2012
Assignee
1
LIFENET HEATH
1864 CONCERT DRIVE
VIRGINIA BEACH, VIRGINIA 23453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9951112
US20130196910
13636870
Correspondence name and address
H. JANICE LEE
1111 PENNSYLVANIA AVENUE NW
WASHINGTON, DC 20004
Assignment: 8
Reel/Frame:030152/0121   Pages: 4
Recorded: 04/04/2013
Attorney Dkt #:067949-5040
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
QIN, XIAOFEI
Exec Dt:
11/16/2012
2
CHEN, SILVIA
Exec Dt:
11/17/2012
3
CHEN, JINGSONG
Exec Dt:
11/20/2012
4
CLAGETT, JAMES A.
Exec Dt:
10/24/2012
Assignee
1
LIFENET HEATH
1864 CONCERT DRIVE
VIRGINIA BEACH, VIRGINIA 23453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9926357
US20130196909
13636869
Correspondence name and address
H. JANICE LEE
1111 PENNSYLVANIA AVENUE NW
WASHINGTON, DC 20004
Assignment: 9
Reel/Frame:030152/0971   Pages: 4
Recorded: 04/04/2013
Attorney Dkt #:067949-5038
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
QIN, XIAOFEI
Exec Dt:
11/16/2012
2
CHEN, SILVIA
Exec Dt:
11/17/2012
3
CHEN, JINGSONG
Exec Dt:
11/20/2012
4
CLAGETT, JAMES A.
Exec Dt:
10/24/2012
Assignee
1
LIFENET HEATH
1864 CONCERT DRIVE
VIRGINIA BEACH, VIRGINIA 23543
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9809635
US20130090290
13636016
Correspondence name and address
H. JANICE LEE
1111 PENNSYLVANIA AVENUE NW
WASHINGTON, DC 20004
Assignment: 10
Reel/Frame:034079/0341   Pages: 2
Recorded: 10/31/2014
Attorney Dkt #:067949-5046
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
QIN, XIAOFEI
Exec Dt:
10/28/2014
2
CHEN, SILVIA
Exec Dt:
10/20/2014
Assignee
1
LIFENET HEALTH
1864 CONCERT DRIVE
VIRGINIA BEACH, VIRGINIA 23453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20150064163
14342561
Correspondence name and address
JANICE H. LEE
1111 PENNSYLVANIA AVE NW
WASHINGTON, DC 20004
Assignment: 11
Reel/Frame:035785/0489   Pages: 9
Recorded: 06/04/2015
Attorney Dkt #:US1500547
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
QIN, XIAOFEI
Exec Dt:
05/29/2015
2
FENG, YONGREN
Exec Dt:
05/29/2015
3
SONG, WANGUANG
Exec Dt:
05/29/2015
4
CHU, XIAODONG
Exec Dt:
05/29/2015
5
WANG, LEI
Exec Dt:
05/29/2015
Assignees
1
CHINA NATIONAL OFFSHORE OIL CORPORATION
NO. 25, CHAO YANGMEN NORTH STREET
BEIJING, CHINA 100010
2
CHINA OILFIELD SERVICES LIMITED
P.O. BOX 232, TONGZHOU DISTRICT,
BEIJING, CHINA 101149
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9982816
US20150316183
14649343
Correspondence name and address
LING WU
P.O. BOX 1747
ROCKVILLE, MD 20849
Assignment: 12
Reel/Frame:043256/0955   Pages: 5
Recorded: 08/10/2017
Attorney Dkt #:LNH-154WO
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
QIN, XIAOFEI
Exec Dt:
08/07/2017
2
CHEN, SILVIA
Exec Dt:
08/08/2017
Assignee
1
LIFENET HEALTH
1864 CONCERT DRIVE
VIRGINIA BEACH, VIRGINIA 23453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11434469
US20180044629
15549771
Correspondence name and address
RATNERPRESTIA
2200 RENAISSANCE BOULEVARD
SUITE 350
KING OF PRUSSIA, PA 19406
Assignment: 13
Reel/Frame:067294/0219   Pages: 4
Recorded: 05/02/2024
Attorney Dkt #:LN-154US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
QIN, XIAOFEI
Exec Dt:
08/07/2017
2
CHEN, SILVIA
Exec Dt:
08/08/2017
Assignee
1
LIFENET HEALTH
1864 CONCERT DRIVE
VIRGINIA BEACH, VIRGINIA 23453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20220372438
17871149
Correspondence name and address
WM JACKSON MATNEY JR.
1818 LIBRARY STREET, SUITE 500
RESTON, VA 20190
Assignment: 14
Reel/Frame:044478/0888   Pages: 8
Recorded: 11/16/2017
Attorney Dkt #:LNH-132US1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHEN, SILVIA SIHUI
Exec Dt:
11/05/2017
2
QIN, XIAOFEI
Exec Dt:
11/06/2017
3
CHEN, JINGSONG
Exec Dt:
11/03/2017
4
WOLFINBARGER, LLOYD, JR.
Exec Dt:
11/05/2017
Assignee
1
LIFENET HEALTH
1864 CONCERT DRIVE
VIRGINIA BEACH, VIRGINIA 23453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11147674
US20180104062
15661519
Correspondence name and address
RATNERPRESTIA
2200 RENAISSANCE BLVD
SUITE 350
KING OF PRUSSIA, PA 19406
Assignment: 15
Reel/Frame:046117/0144   Pages: 10
Recorded: 06/18/2018
Attorney Dkt #:LNH-227US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
QIN, XIAOFEI
Exec Dt:
06/01/2018
2
CHEN, SILVIA
Exec Dt:
06/10/2018
3
ASCHENBACH, LINDSEY
Exec Dt:
06/07/2018
4
CHEN, JINGSONG
Exec Dt:
06/01/2018
Assignee
1
LIFENET HEALTH
1864 CONCERT DRIVE
VIRGINIA BEACH, VIRGINIA 23453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11207446
US20180361026
16063357
Correspondence name and address
RATNERPRESTIA
2200 RENAISSANCE BOULEVARD
SUITE 350
KING OF PRUSSIA, PA 19406
Assignment: 16
Reel/Frame:048481/0425   Pages: 8
Recorded: 03/01/2019
Attorney Dkt #:LNH-259US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
QIN, XIAOFEI
Exec Dt:
02/04/2019
2
CHEN, SILVIA
Exec Dt:
02/06/2019
3
CHEN, JINGSONG
Exec Dt:
02/04/2019
4
CLAGETT, JAMES
Exec Dt:
02/17/2019
Assignee
1
LIFENET HEALTH
1864 CONCERT DRIVE
VIRGINIA BEACH, VIRGINIA 23453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11078248
US20190153054
16218979
Correspondence name and address
LING ZHONG
RATNERPRESTIA
2200 RENAISSANCE BLVD., SUITE 350
KING OF PRUSSIA, PA 19406
Assignment: 17
Reel/Frame:051429/0913   Pages: 12
Recorded: 01/07/2020
Attorney Dkt #:US1900937
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
FENG, YONGREN
Exec Dt:
06/05/2019
2
BAO, ZHONGLI
Exec Dt:
06/05/2019
3
YU, QIANG
Exec Dt:
06/05/2019
4
QIN, XIAOFEI
Exec Dt:
06/05/2019
5
HUANG, LIN
Exec Dt:
06/03/2019
6
WU, XINGFANG
Exec Dt:
05/28/2019
7
YANG, YUQING
Exec Dt:
06/03/2019
8
ZOU, JIBIN
Exec Dt:
06/05/2019
Assignee
1
CHINA OILFIELD SERVICES, LIMITED
NO. 1581 HAICHUAN ROAD, TANGGU MARINE SCIENCE AND TECHNOLOGY PARK,
BINHAI HIGH-TECH ZONE
TIANJIN, CHINA 300459
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11624244
US20210277723
16627334
Correspondence name and address
LING WU
11618 SORREL RUN NW
GIG HARBOR, WA 98332
Assignment: 18
Reel/Frame:055353/0863   Pages: 6
Recorded: 02/22/2021
Attorney Dkt #:LNH-278US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GASKINS, BARTON D.
Exec Dt:
02/04/2021
2
PHELPS, DENNIS L.
Exec Dt:
02/03/2021
3
OSBORNE, DANIEL B.
Exec Dt:
02/04/2021
4
WOLFINBARGER, LLOYD, JR.
Exec Dt:
02/18/2021
5
QIN, XIAOFEI
Exec Dt:
02/02/2021
Assignee
1
LIFENET HEALTH
1864 CONCERT DRIVE
VIRGINIA BEACH, VIRGINIA 23453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20210154369
17164616
Correspondence name and address
RATNERPRESTIA
2200 RENAISSANCE BOULEVARD
SUITE 350
KING OF PRUSSIA, PA 19406
Assignment: 19
Reel/Frame:058248/0413   Pages: 6
Recorded: 11/30/2021
Attorney Dkt #:007556.00231
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LU, TAO
Exec Dt:
06/10/2021
2
FENG, YONGREN
Exec Dt:
06/10/2021
3
XU, CHANGGUI
Exec Dt:
06/10/2021
4
TIAN, ZHIBIN
Exec Dt:
06/10/2021
5
QIN, XIAOFEI
Exec Dt:
06/10/2021
6
ZHOU, MINGGAO
Exec Dt:
06/10/2021
7
CHU, XIAODONG
Exec Dt:
06/10/2021
8
LIU, TIEMIN
Exec Dt:
06/10/2021
9
XUE, YONGZENG
Exec Dt:
06/10/2021
10
WEI, ZANQING
Exec Dt:
06/10/2021
11
HUANG, LIN
Exec Dt:
06/10/2021
Assignees
1
CHINA OILFIELD SERVICES LIMITED
NO. 1581 HAICHUAN RD.
TANGGU MARINE SCIENCE AND TECHNOLOGY PARK
TIANJIN, CHINA 300459
2
CHINA NATIONAL OFFSHORE OIL CORPORATION
NO. 25, CHAOYANGMENBEI DAJIE
BEIJING, CHINA 100010
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11905829
US20220316290
17420108
Correspondence name and address
BANNER & WITCOFF, LTD.
71 SOUTH WACKER DRIVE
SUITE 3600
CHICAGO, IL 60606
Assignment: 20
Reel/Frame:057279/0733   Pages: 5
Recorded: 08/25/2021
Attorney Dkt #:AFD0461PUSA
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZUO, YOUXIANG
Exec Dt:
08/10/2021
2
FENG, YONGREN
Exec Dt:
08/10/2021
3
LU, TAO
Exec Dt:
08/10/2021
4
KONG, SUN
Exec Dt:
08/10/2021
5
SHEN, YANG
Exec Dt:
08/10/2021
6
QIN, XIAOFEI
Exec Dt:
08/10/2021
7
CHU, XIAODONG
Exec Dt:
08/10/2021
8
CHEN, YONGCHAO
Exec Dt:
08/11/2021
9
WU, XINGFANG
Exec Dt:
08/13/2021
10
HUANG, LIN
Exec Dt:
08/13/2021
Assignees
1
CHINA OILFIELD SERVICES LIMITED
NO. 1581 HAICHUAN ROAD, TANGGU MARINE SCIENCE AND TECHNOLOGY PARK, TIANJIN BINHAI HIGH-TECH ZONE
TIANJIN, CHINA 300459
2
CHINA NATIONAL OFFSHORE OIL CORPORATION
NO. 25, CHAOYANGMENBEI DAJIE, DONGCHENG DISTRICT
BEIJING, CHINA 100010
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20220155275
17433519
Correspondence name and address
BROOKS KUSHMAN P.C.
1000 TOWN CENTER, TWENTY-SECOND FLOOR
SOUTHFIELD, MI 48075
Assignment: 21
Reel/Frame:057793/0329   Pages: 3
Recorded: 10/14/2021
Attorney Dkt #:LNH-261US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
QIN, XIAOFEI
Exec Dt:
10/11/2021
2
MENG, FANWEI
Exec Dt:
10/11/2021
3
CHEN, JINGSONG
Exec Dt:
10/08/2021
Assignee
1
LIFENET HEALTH
1864 CONCERT DRIVE
VIRGINIA BEACH, VIRGINIA 23453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20220152120
17603661
Correspondence name and address
RATNERPRESTIA
2200 RENAISSANCE BOULEVARD
SUITE 350
KING OF PRUSSIA, PA 19406
Assignment: 22
Reel/Frame:060705/0271   Pages: 4
Recorded: 08/03/2022
Attorney Dkt #:LNH-260US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
QIN, XIAOFEI
Exec Dt:
04/28/2022
2
LAPRADE, MICHAEL
Exec Dt:
04/29/2022
3
CHEN, JINGSONG
Exec Dt:
04/15/2022
4
JONES, JOSHUA
Exec Dt:
04/15/2022
5
JOHNSON, AUSTIN
Exec Dt:
04/15/2022
6
LOHMANN, ERICH
Exec Dt:
04/27/2022
Assignee
1
LIFENET HEALTH
1864 CONCERT DRIVE
VIRGINIA BEACH, VIRGINIA 23453
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20220151765
17440522
Correspondence name and address
RATNERPRESTIA
2200 RENAISSANCE BLVD.
SUITE 350
KING OF PRUSSIA, PA 19406

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