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Patent Assignment Assignor Details
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Assignor Name : ZHANG, KEWEI
Total Assignments: 35
Assignment: 1
Reel/Frame:010484/0562   Pages: 4
Recorded: 12/29/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
ZHANG, KEWEI
Exec Dt:
12/16/1999
Assignee
1
NOWSCO-FRACMASTER LTD.
6620-36TH STREET S.E.
CALGARY, ALBERTA, CANADA T2C 2
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6468945
NONE
09474164
Correspondence name and address
LERNER, DAVID, LITTENBERG, ETAL
ARNOLD H. KRUMHOLZ
600 SOUTH AVENUE WEST
WESTFIELD, NJ 07090
Assignment: 2
Reel/Frame:010498/0250   Pages: 5
Recorded: 12/29/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, KEWEI
Exec Dt:
12/16/1999
2
PIERCE, RON
Exec Dt:
12/17/1999
3
LITT, NICOLE DEANNE
Exec Dt:
12/21/1999
4
GUPTA, D.V. SATYANARAYANA
Exec Dt:
12/17/1999
Assignee
1
NOWSCO-FRACMASTER LTD.
6620 - 36TH STREET, S.E.
CALGARY, ALBERTA, CANADA T2C 2
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6410489
NONE
09474149
Correspondence name and address
LERNER, DAVID, LITTENBERG, ET AL.
ARNOLD H. KRUMHOLZ
600 SOUTH AVENUE WEST
WESTFIELD, NJ 07090
Assignment: 3
Reel/Frame:012068/0701   Pages: 3
Recorded: 08/13/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
ZHANG, KEWEI
Exec Dt:
12/16/1999
Assignee
1
NOWSCO-FRACMASTER LTD.
6620-36TH STREET, S.E.
CALGARY, ALBERTA T2C 2G4, CANADA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6468945
NONE
09474164
Correspondence name and address
BRACEWELL & PATTERSON, LLP
CHARLES D. GUNTER, JR.
201 MAIN STREET
SUITE 1600
FORT WORTH, TX 76102
Assignment: 4
Reel/Frame:014330/0585   Pages: 5
Recorded: 07/28/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
D.V. SATYANARAYANA GUPTA
Exec Dt:
04/28/2003
2
NIECHWIADOWICZ, GREG
Exec Dt:
05/02/2003
3
ZHANG, KEWEI
Exec Dt:
07/07/2003
Assignee
1
BJ SERVICES COMPANY
5500 NW CENTRAL DRIVE
HOUSTON, TEXAS 77092
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7638468
US20040138071
10345104
Correspondence name and address
MICHELLE ESCOBEDO
600 TRAVIS
3400 JP MORGAN CHASE TOWER
HOUSTON, TX 77002
Assignment: 5
Reel/Frame:018075/0781   Pages: 4
Recorded: 07/25/2006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
ZHANG, KEWEI
Exec Dt:
06/29/2006
Assignee
1
TRICAN WELL SERVICE LTD.
645-7TH AVENUE S.W.
CALGARY, ALBERTA, CANADA T2P 4G8
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6904972
US20030168217
10275295
Correspondence name and address
EUGENE F. DERENYI
STIKEMAN ELLIOTT LLP
1600-50 O'CONNOR STREET
OTTAWA, ONTARIO K1P 6L2
Assignment: 6
Reel/Frame:019909/0741   Pages: 2
Recorded: 10/02/2007
Attorney Dkt #:7957.006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, KEWEI
Exec Dt:
09/19/2007
2
RITTEN, BRENT
Exec Dt:
09/19/2007
Assignee
1
TRICAN WELL SERVICE, LTD.
645 7TH AVENUE S.W.
SUITE 2900
CALGARY, CANADA T2P 4G8
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20080011486
11774436
Correspondence name and address
NICHOLAS D. ROUSE
P. O. BOX 16370
OKLAHOMA CITY, OK 73113
Assignment: 7
Reel/Frame:024139/0291   Pages: 3
Recorded: 03/25/2010
Attorney Dkt #:7957.004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
ZHANG, KEWEI
Exec Dt:
12/13/2007
Assignee
1
TRICAN WELL SERVICE LTD.
645-7TH AVENUE S.W.
SUITE 2900
CALGARY, ALBERTA, CANADA T2P 4G8
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7723274
US20070015669
11416704
Correspondence name and address
DUNLAP CODDING, P.C.
P.O. BOX 16370
OKLAHOMA CITY, OK 73113
Assignment: 8
Reel/Frame:040747/0481   Pages: 3
Recorded: 12/22/2016
Attorney Dkt #:2885.005
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
ZHANG, KEWEI
Exec Dt:
12/13/2007
Assignee
1
TRICAN WELL SERVICE LTD.
645-7TH AVENUE S.W.
SUITE 2900
CALGARY, CANADA T2P 4G8
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9714371
US20100197526
12759469
Correspondence name and address
DUNLAP CODDING, P.C.
P.O. BOX 16370
OKLAHOMA CITY, OK 73113
Assignment: 9
Reel/Frame:023920/0361   Pages: 4
Recorded: 02/10/2010
Attorney Dkt #:20043.0001U1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, KEWEI
Exec Dt:
03/03/2008
2
LEE, DARREN K
Exec Dt:
03/05/2008
Assignee
1
TRICAN WELL SERVICE LTD.
645-7TH AVENUE S.W.
SUITE 2900
CALGARY, ALBERTA, CANADA T2P 4G8
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20100190665
12394921
Correspondence name and address
SMITH FROHWEIN TEMPEL GREENLEE BLAHA, LL
TWO RAVINIA DRIVE
SUITE 700
ATLANTA, GA 30346
Assignment: 10
Reel/Frame:023587/0045   Pages: 2
Recorded: 12/01/2009
Attorney Dkt #:P105739US00NJ
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
ZHANG, KEWEI
Exec Dt:
04/10/2008
Assignee
1
TRICAN WELL SERVICES LTD.
645-7TH AVENUE S.W.
SUITE 2900
CALGARY, ALBERTA, CANADA T2P 4G8
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
8105986
US20100204071
12595461
 
8105986
US20100204071
12595461
Correspondence name and address
NICHOLAS J. LANDAU
1819 5TH AVE. N.
BRADLEY ARANT BOULT CUMMINGS, LLP
BIRMINGHAM, AL 35205
Assignment: 11
Reel/Frame:027299/0478   Pages: 2
Recorded: 11/30/2011
Attorney Dkt #:P105739US01NJ
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
ZHANG, KEWEI
Exec Dt:
04/10/2008
Assignee
1
TRICAN WELL SERVICE LTD.
645-7TH AVENUE S.W.
SUITE 2900
CALGARY, ALBERTA, CANADA T2P 4G8
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9139761
US20120071371
13305325
Correspondence name and address
NICHOLAS J. LANDAU
1819 5TH AVENUE NORTH
BRADLEY ARANT BOULT CUMMINGS, LLP
BRIMINGHAM, AL 35203-2119
Assignment: 12
Reel/Frame:024441/0378   Pages: 3
Recorded: 05/26/2010
Attorney Dkt #:T8800-107045
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
ZHANG, KEWEI
Exec Dt:
06/24/2008
Assignee
1
TRICAN WELL SERVICE LTD.
645-7TH AVENUE S.W.
SUITE 2900
CALGARY, CANADA T2P 4G8
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20100256024
12669178
Correspondence name and address
NICHOLAS J. LANDAU
ONE FEDERAL PLACE
1819 FIFTH AVENUE NORTH
BIRMINGHAM, AL 35203-2119
Assignment: 13
Reel/Frame:024853/0154   Pages: 5
Recorded: 08/18/2010
Attorney Dkt #:7957.008
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, KEWEI
Exec Dt:
02/16/2010
2
O'NEIL, BILL
Exec Dt:
02/16/2010
3
MALEY, DARREN
Exec Dt:
02/16/2010
Assignee
1
TRICAN WELL SERVICES LTD.
C/O 645-7TH AVENUE S.W.
SUITE 2900
CALGARY, ALBERTA, CANADA T2P 4G8
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7977285
US20100113308
12613350
Correspondence name and address
NICHOLAS D. ROUSE
P.O. BOX 16370
OKLAHOMA CITY, OK 73113
Assignment: 14
Reel/Frame:025547/0705   Pages: 6
Recorded: 12/21/2010
Attorney Dkt #:P106627US00NJ
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, KEWEI
Exec Dt:
05/19/2010
2
WIGGINS, CHRIS
Exec Dt:
05/19/2010
Assignee
1
TRICAN WELL SERVICE LTD.
645-7TH AVENUE SW
SUITE 2900
CALGARY, CANADA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8499835
US20110011589
12664036
Correspondence name and address
NICHOLAS J. LANDAU
1819 5TH AVENUE NORTH
BRADLEY ARANT BOULT CUMMINGS, LLP
BRIMINGHAM, AL 35203-2119
Assignment: 15
Reel/Frame:025755/0918   Pages: 7
Recorded: 02/07/2011
Attorney Dkt #:P106627US00NJ
Conveyance: CORRECTIVE ASSIGNMENT TO CORRECT THE APPLICATION NUMBER, WHICH WAS INCORRECTLY LISTED AS 12/644,036 PREVIOUSLY RECORDED ON REEL 025547 FRAME 0705. ASSIGNOR(S) HEREBY CONFIRMS THE TEXT OF THE ORIGINAL ASSIGNMENT SHOWS IN BOLD TYPE THE CORRECT APPLICATION NUMBER 12/664,036..
Assignors
1
ZHANG, KEWEI
Exec Dt:
05/19/2010
2
WIGGINS, CHRIS
Exec Dt:
05/19/2010
Assignee
1
TRICAN WELL SERVICES, LTD.
645-7TH AVENUE SW
SUITE 2900
CALGARY, CANADA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8499835
US20110011589
12664036
Correspondence name and address
NICHOLAS J. LANDAU
1819 5TH AVENUE NORTH
BRADLEY ARANT BOULT CUMMINGS, LLP
BRIMINGHAM, AL 35203-2119
Assignment: 16
Reel/Frame:025543/0636   Pages: 3
Recorded: 12/21/2010
Attorney Dkt #:P105843US00NJ
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
ZHANG, KEWEI
Exec Dt:
11/26/2010
Assignee
1
TRICAN WELL SERVICE LTD.
645-7TH AVENUE SW
SUITE 2900
CALGARY, CANADA T2P 4G8
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8236738
US20100267593
12597370
Correspondence name and address
NICHOLAS J. LANDAU
1819 5TH AVENUE NORTH
BRADLEY ARANT BOULT CUMMINGS, LLP
BRIMINGHAM, AL 35203-2119
Assignment: 17
Reel/Frame:031665/0275   Pages: 3
Recorded: 11/25/2013
Attorney Dkt #:P105843US02NJ
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
ZHANG, KEWEI
Exec Dt:
11/26/2010
Assignee
1
TRICAN WELL SERVICE LTD.
645-7TH AVENUE SW
SUITE 2900, CALGARY
ALBERTA, CANADA T2P 4G8
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8800658
US20120267105
13541249
Correspondence name and address
DONITA EVANS
1819 FIFTH AVENUE NORTH
BIRMINGHAM, AL 35203
Assignment: 18
Reel/Frame:039476/0911   Pages: 3
Recorded: 08/18/2016
Attorney Dkt #:P105843US03NJ
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
ZHANG, KEWEI
Exec Dt:
11/26/2010
Assignee
1
TRICAN WELL SERVICE LTD.
645-7TH AVENUE SW
SUITE 2900
CALGARY, ALBERTA, CANADA T2P 4G8
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9523030
US20140243245
14273030
Correspondence name and address
DONITA EVANS
1819 FIFTH AVENUE NORTH
BRADLEY ARANT BOULT CUMMINGS LLP
BIRMINGHAM, AL 35203
Assignment: 19
Reel/Frame:026359/0563   Pages: 3
Recorded: 05/31/2011
Attorney Dkt #:7957.011
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, KEWEI
Exec Dt:
03/14/2011
2
WIGGINS, CHRIS
Exec Dt:
03/14/2011
Assignee
1
TRICAN WELL SERVICE LTD.
645-7TH AVENUE S.W.
SUITE 2900
CALGARY, ALBERTA, CANADA T2P 4G8
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20120067584
13050661
Correspondence name and address
DUNLAP CODDING, P.C.
P.O. BOX 16370
OKLAHOMA CITY, OK 73113
Assignment: 20
Reel/Frame:026142/0984   Pages: 4
Recorded: 04/18/2011
Attorney Dkt #:0T8800301002US00
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, KEWEI
Exec Dt:
04/12/2011
2
SHERMAN, SCOTT
Exec Dt:
04/12/2011
Assignee
1
TRICAN WELL SERVICE LTD.
645-7TH AVENUE S.W.
SUITE 2900
CALGARY, ALBERTA, CANADA T2P 4G8
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9206659
US20110186297
13021698
Correspondence name and address
NICHOLAS J. LANDAU
1819 5TH AVENUE NORTH
BRADLEY ARANT BOULT CUMMINGS, LLP
BRIMINGHAM, AL 35203-2119
Assignment: 21
Reel/Frame:027590/0519   Pages: 4
Recorded: 01/25/2012
Attorney Dkt #:BSA 11-03
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LIU, CHANG-JUN
Exec Dt:
11/17/2011
2
BHUIYA, MOHAMMAD-WADUD
Exec Dt:
11/30/2011
3
ZHANG, KEWEI
Exec Dt:
11/17/2011
Assignee
1
BROOKHAVEN SCIENCE ASSOCIATES, LLC
40 BROOKHAVEN AVE - P.O. BOX 5000
BLDG. 460
UPTON, NEW YORK 11973-5000
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8889392
US20120117694
13284148
Correspondence name and address
BROOKHAVEN NATIONAL LABORATORY
BLDG. 490C - 30 BELL AVE
UPTON, NY 11973-5000
Assignment: 22
Reel/Frame:028226/0426   Pages: 5
Recorded: 05/17/2012
Attorney Dkt #:0T8800301004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, KEWEI
Exec Dt:
04/03/2012
2
CAO, SHANDONG
Exec Dt:
04/03/2012
Assignee
1
TRICAN WELL SERVICE LTD.
645-7TH AVENUE S.W. SUITE 2900
CALGARY, ALBERTA, CANADA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20120267112
13392423
Correspondence name and address
NICHOLAS J. LANDAU
1819 5TH AVENUE NORTH
BRADLEY ARANT BOULT CUMMINGS, LLP
BRIMINGHAM, AL 35203-2119
Assignment: 23
Reel/Frame:028588/0684   Pages: 7
Recorded: 07/19/2012
Attorney Dkt #:55879-220778
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CHENG, ZHONGYANG
Exec Dt:
06/19/2012
2
ZHANG, ANXUE
Exec Dt:
06/22/2012
3
ZHANG, KEWEI
Exec Dt:
06/21/2012
4
CHIN, BRYAN
Exec Dt:
06/19/2012
Assignee
1
AUBURN UNIVERSITY
570 DEVALL DRIVE, SUITE 102
OFFICE OF TECHNOLOGY TRANSFER
AUBURN, ALABAMA 36832
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9201048
US20120280682
13441572
Correspondence name and address
BARNES & THORNBURG LLP
11 S. MERIDIAN STREET
INDIANAPOLIS, IN 46204
Assignment: 24
Reel/Frame:028644/0399   Pages: 3
Recorded: 07/26/2012
Attorney Dkt #:0T8800-301005
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
ZHANG, KEWEI
Exec Dt:
07/18/2012
Assignee
1
TRICAN WELL SERVICE LTD
645-7TH AVENUE S.W.
SUITE 2900
CALGARY, ALBERTA, CANADA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20120322697
13522679
Correspondence name and address
NICHOLAS J. LANDAU
1819 FIFTH AVENUE NORTH
ONE FEDERAL PLACE
BIRMINGHAM, AL 35203
Assignment: 25
Reel/Frame:038090/0249   Pages: 7
Recorded: 03/24/2016
Attorney Dkt #:29543.7353
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GAN, SUSHENG
Exec Dt:
10/31/2014
2
ZHANG, KEWEI
Exec Dt:
10/24/2014
Assignee
1
CORNELL UNIVERSITY
CORNELL CENTER FOR TECHNOLOGY, ENTERPRISE & COMMERCIALIZATION ("CCTEC")
395 PINE TREE ROAD, SUITE 310
ITHACA, NEW YORK 14850
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9873889
US20160312239
14909641
Correspondence name and address
LECLAIRRYAN, A PROFESSIONAL CORPORATION
70 LINDEN OAKS, SUITE 210
ROCHESTER, NY 14625
Assignment: 26
Reel/Frame:035188/0782   Pages: 3
Recorded: 03/18/2015
Attorney Dkt #:7957.014
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, KEWEI
Exec Dt:
03/02/2015
2
LIU, SHANGYING
Exec Dt:
03/02/2015
3
CAO, SHANDONG
Exec Dt:
03/02/2015
Assignee
1
TRICAN WELL SERVICE LTD.
645-7TH AVENUE
SUITE 2900
CALGARY, ALBERTA, CANADA T2P 4G8
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20150252254
14641098
Correspondence name and address
DUNLAP CODDING, P.C.
P.O. BOX 16370
OKLAHOMA CITY, OK 73113-2370
Assignment: 27
Reel/Frame:037001/0172   Pages: 4
Recorded: 11/10/2015
Attorney Dkt #:2805-064 US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, KEWEI
Exec Dt:
10/28/2015
2
HEIDLAS, JULIUS XAVER
Exec Dt:
10/28/2015
3
WANG, CHUANZHONG
Exec Dt:
10/28/2015
4
LU, WEIBING
Exec Dt:
10/28/2015
Assignee
1
TRICAN WELL SERVICE LTD.
SUITE #2900, 645-7TH AVENUE SW
CALGARY, CANADA T2P 4G8
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20160017213
14801619
Correspondence name and address
SEAN W GOODWIN
222-602 12TH AVE. S.W.
CALGARY, T2R1J3 CANADA
Assignment: 28
Reel/Frame:037000/0375   Pages: 3
Recorded: 11/10/2015
Attorney Dkt #:2805-063 US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WANG, CHUANZHONG
Exec Dt:
11/04/2015
2
ZHANG, KEWEI
Exec Dt:
11/05/2015
3
LU, WEIBING
Exec Dt:
11/05/2015
Assignee
1
TRICAN WELL SERVICE LTD.
SUITE #2900, 645-7TH AVENUE SW
CALGARY, CANADA T2P 4G8
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9932514
US20150307772
14696125
Correspondence name and address
SEAN W GOODWIN
222-602 12TH AVE. S.W.
CALGARY, T2R1J3 CANADA
Assignment: 29
Reel/Frame:037953/0440   Pages: 4
Recorded: 03/11/2016
Attorney Dkt #:82805-065 US
Conveyance: NUNC PRO TUNC ASSIGNMENT (SEE DOCUMENT FOR DETAILS).
Assignors
1
FARION, GRANT
Exec Dt:
01/08/2016
2
ZHANG, KEWEI
Exec Dt:
01/08/2016
3
BURVILL, MIKE
Exec Dt:
01/11/2016
Assignee
1
TRICAN WELL SERVICE LTD.
SUITE 2900, 645 - 7 AVENUE SW
CALGARY, CANADA T2P 4G8
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20160200965
14993030
Correspondence name and address
PARLEE MCLAWS LLP (CGY)
3300, 421 - 7 AVENUE SW
CALGARY, T2P 4K9 CANADA
Assignment: 30
Reel/Frame:045352/0342   Pages: 3
Recorded: 03/26/2018
Attorney Dkt #:312360-01101
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
ZHANG, KEWEI
Exec Dt:
03/21/2018
Assignee
1
TRICAN WELL SERVICE LTD.
2900, 645-7TH AVENUE S.W.
CALGARY, CANADA T2P 4G8
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20180265773
15921179
Correspondence name and address
BLANK ROME LLP
717 TEXAS AVENUE
SUITE 1400
HOUSTON, TX 77002
Assignment: 31
Reel/Frame:048896/0989   Pages: 8
Recorded: 04/16/2019
Attorney Dkt #:312360-01001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
WANG, CHUANZHONG
Exec Dt:
03/29/2019
2
QUINTERO, HARVEY
Exec Dt:
03/29/2019
3
O'NEIL, BILL
Exec Dt:
04/01/2019
4
ZHANG, KEWEI
Exec Dt:
04/10/2019
5
SESSAREGO, SEBASTIAN
Exec Dt:
04/12/2019
Assignee
1
TRICAN WELL SERVICE LTD.
2900, 645-7TH AVENUE S.W.
CALGARY, CANADA T2P 4G8
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11236258
US20190218438
16247240
Correspondence name and address
BLANK ROME LLP - HOUSTON GENERAL
717 TEXAS AVENUE, SUITE 1400
HOUSTON, TX 77002
Assignment: 32
Reel/Frame:055907/0254   Pages: 5
Recorded: 04/13/2021
Attorney Dkt #:BGF-000600US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, KEWEI
Exec Dt:
03/31/2021
2
PENG, KAIXUAN
Exec Dt:
03/31/2021
3
ZHANG, WEI
Exec Dt:
03/31/2021
4
CUI, FUBIN
Exec Dt:
03/31/2021
5
ZHAO, JIANGZHE
Exec Dt:
03/31/2021
Assignee
1
ZHEJIANG NORMAL UNIVERSITY
688 YINGBIN ROAD
JINHUA, ZHEJIANG PROVINCE, CHINA 321004
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20210324397
17229530
Correspondence name and address
DON D. CHA
12640 W. CEDAR DR.
STE 1
LAKEWOOD, CO 80228
Assignment: 33
Reel/Frame:056838/0753   Pages: 5
Recorded: 07/13/2021
Attorney Dkt #:1236-0009US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, KEWEI
Exec Dt:
07/06/2021
2
O'NEIL, BILL
Exec Dt:
07/07/2021
3
WANG, CHUANZHONG
Exec Dt:
07/06/2021
4
LU, WEIBING
Exec Dt:
07/07/2021
5
QUINTERO, HARVEY
Exec Dt:
07/07/2021
6
FARION, GRANT
Exec Dt:
07/07/2021
Assignee
1
TRICAN WELL SERVICE LTD
2900, 645-7TH AVENUE S.W.
CALGARY, CANADA T2P 4G8
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11130892
US20200010749
16470409
Correspondence name and address
BLANK ROME LLP - HOUSTON GENERAL
717 TEXAS AVENUE, SUITE 1400
HOUSTON, TX 77002
Assignment: 34
Reel/Frame:059624/0552   Pages: 6
Recorded: 04/18/2022
Attorney Dkt #:3205/0101PUS1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZHANG, KEWEI
Exec Dt:
04/07/2022
2
ZHANG, MINGXIN
Exec Dt:
04/07/2022
3
XIA, YANZHI
Exec Dt:
04/07/2022
4
HUI, BIN
Exec Dt:
04/07/2022
5
ZHOU, ANQIN
Exec Dt:
04/07/2022
Assignee
1
QINGDAO UNIVERSITY, CHINA
NO. 7 HONGKONG EAST ROAD, LAOSHAN DISTRICT
QINGDAO, SHANDONG, CHINA 266071
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11913930
US20220326205
17716519
Correspondence name and address
MUNCY, GEISSLER, OLDS & LOWE, PC
4000 LEGATO RD., SUITE 310
FAIRFAX, VA 22033
Assignment: 35
Reel/Frame:061073/0881   Pages: 8
Recorded: 09/13/2022
Attorney Dkt #:1022.420.SU
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LIU, NA
Exec Dt:
08/25/2022
2
CHEN, ZIHENG
Exec Dt:
08/25/2022
3
YUAN, HUIYU
Exec Dt:
08/25/2022
4
ZHANG, DAN
Exec Dt:
08/25/2022
5
ZHANG, KEWEI
Exec Dt:
08/25/2022
6
YUE, TAO
Exec Dt:
08/25/2022
7
LIU, YUANYUAN
Exec Dt:
08/25/2022
8
PENG, YAN
Exec Dt:
08/25/2022
Assignee
1
SHANGHAI UNIVERSITY
NO. 99, SHANGDA ROAD, BAOSHAN DISTRICT
SHANGHAI, CHINA 200444
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11925531
US20230081314
17943356
Correspondence name and address
BAY STATE IP, LLC
10 POST OFFICE SQUARE, SUITE 800
BOSTON, MA 02109

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