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Patent Assignment Assignor Details
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Assignor Name : VIGDERMAN, LEONID
Total Assignments: 15
Assignment: 1
Reel/Frame:033241/0176   Pages: 5
Recorded: 07/03/2014
Attorney Dkt #:03015/85UTL
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
VIGDERMAN, LEONID
Exec Dt:
05/09/2014
2
SAINI, RAJESH K.
Exec Dt:
05/09/2014
Assignee
1
CLEARWATER INTERNATIONAL LLC
2000 ST. JAMES PLACE
HOUSTON, TEXAS 77056
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10202828
US20150300131
14257830
Correspondence name and address
ROBERT W. STROZIER
P.O. BOX 429
BELLAIRE, TX 77402-0429
Assignment: 2
Reel/Frame:034670/0851   Pages: 11
Recorded: 01/09/2015
Attorney Dkt #:03015/81UTL
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SAINI, RAJESH K.
Exec Dt:
12/04/2014
2
SMITH, CLAYTON S.
Exec Dt:
12/07/2014
3
SAMUEL, MATHEW M.
Exec Dt:
01/06/2015
4
SMITH, KERN L.
Exec Dt:
01/06/2015
5
HWANG, CHIH-CHAU
Exec Dt:
12/04/2014
6
VIGDERMAN, LEONID
Exec Dt:
12/04/2014
7
TREYBIG, DUANE
Exec Dt:
12/04/2014
Assignee
1
CLEARWATER INTERNATIONAL LLC
2000 ST. JAMES PLACE
HOUSTON, TEXAS 77056
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9945220
US20150101808
14546246
Correspondence name and address
ROBERT W. STROZIER
P.O. BOX 429
HOUSTON, TX 77402-0429
Assignment: 3
Reel/Frame:034670/0938   Pages: 11
Recorded: 01/09/2015
Attorney Dkt #:03015/88UTL
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HWANG, CHIH-CHAU
Exec Dt:
12/04/2014
2
SAINI, RAJESH K.
Exec Dt:
12/04/2014
3
VIGDERMAN, LEONID
Exec Dt:
12/04/2014
4
TREYBIG, DUANE
Exec Dt:
12/04/2014
5
SMITH, CLAYTON S.
Exec Dt:
12/08/2014
6
SAMUEL, MATHEW M.
Exec Dt:
01/06/2015
7
SMITH, KERN L.
Exec Dt:
12/08/2014
Assignee
1
CLEARWATER INTERNATIONAL LLC
2000 ST. JAMES PLACE
HOUSTON, TEXAS 77056
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9909404
US20150068747
14546288
Correspondence name and address
ROBERT W. STROZIER
P.O. BOX 429
BELLAIRE, TX 77402-0429
Assignment: 4
Reel/Frame:034671/0110   Pages: 15
Recorded: 01/09/2015
Attorney Dkt #:03015/89UTL
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
HUANG, JIAN
Exec Dt:
12/02/2014
2
DESHPANDE, KEDAR M.
Exec Dt:
12/03/2014
3
SAFARIFOROSHANI, MOHAMMAD REZA
Exec Dt:
12/02/2014
4
MUTLU, OVUNC
Exec Dt:
12/02/2014
5
HWANG, CHIH-CHAU
Exec Dt:
12/04/2014
6
SAINI, RAJESH K.
Exec Dt:
12/04/2014
7
VIGDERMAN, LEONID
Exec Dt:
12/04/2014
8
TREYBIG, DUANE
Exec Dt:
12/04/2014
9
SMITH, CLAYTON S.
Exec Dt:
12/08/2014
10
SAMUEL, MATHEW M.
Exec Dt:
01/06/2015
11
SMITH, KERN L.
Exec Dt:
01/06/2015
Assignee
1
WEATHERFORD TECHNOLOGY HOLDING, LLC
2000 ST. JAMES PLACE
HOUSTON, TEXAS 77056
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10001769
US20160139588
14546301
Correspondence name and address
ROBERT W. STROZIER
P.O. BOX 429
BELLAIRE, TX 77402-0429
Assignment: 5
Reel/Frame:037290/0889   Pages: 8
Recorded: 12/15/2015
Attorney Dkt #:03015/75PRV/UTL/PCT
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SAINI, RAJESH K.
Exec Dt:
10/21/2015
2
VIGDERMAN, LEONID
Exec Dt:
10/21/2015
Assignee
1
CLEARWATER INTERNATIONAL LLC
2000 ST. JAMES PLACE
HOUSTON, TEXAS 77056
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20140318793
14257782
Correspondence name and address
ROBERT W. STROZIER
P.O. BOX 429
BELLAIRE, TX 77402-0429
Assignment: 6
Reel/Frame:046755/0471   Pages: 8
Recorded: 08/30/2018
Attorney Dkt #:076063.000051
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SAINI, RAJESH K.
Exec Dt:
10/21/2015
2
VIGDERMAN, LEONID
Exec Dt:
10/21/2015
Assignee
1
LUBRIZOL OILFIELD SOLUTIONS, INC.
29400 LAKELAND BLVD.
WICKLIFFE, OHIO 44092
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10309172
US20180371851
16117490
Correspondence name and address
VORYS SATER SEYMOUR AND PEASE LLP
1909 K STREET, NW
9TH FLOOR
WASHINGTON, DC 20006-1152
Assignment: 7
Reel/Frame:043893/0178   Pages: 3
Recorded: 10/18/2017
Attorney Dkt #:4381
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
VIGDERMAN, LEONID
Exec Dt:
06/17/2016
2
TREYBIG, DUANE S.
Exec Dt:
06/17/2016
3
SAINI, RAJESH K.
Exec Dt:
06/17/2016
Assignee
1
LUBRIZOL OILFIELD SOLUTIONS, INC.
29400 LAKELAND BLVD.
WICKLIFFE, OHIO 44092-2298
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20180112121
15567464
Correspondence name and address
DAWN A. BROWN
THE LUBRIZOL CORPORATION
29400 LAKELAND BLVD.
WICKLIFFE, OH 44092-2298
Assignment: 8
Reel/Frame:043909/0781   Pages: 3
Recorded: 10/20/2017
Attorney Dkt #:4393
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
TREYBIG, DUANE S.
Exec Dt:
06/17/2016
2
VIGDERMAN, LEONID
Exec Dt:
06/17/2016
3
SAINI, RAJESH K.
Exec Dt:
06/17/2016
Assignee
1
LUBRIZOL OILFIELD SOLUTIONS, INC.
29400 LAKELAND BLVD.
WICKLIFFE, OHIO 44092-2298
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20180142137
15568015
Correspondence name and address
THE LUBRIZOL CORPORATION
29400 LAKELAND BLVD.
DAWN A. BROWN
WICKLIFFE, OH 44092-2298
Assignment: 9
Reel/Frame:046265/0904   Pages: 4
Recorded: 07/04/2018
Attorney Dkt #:BJSV:003
Conveyance: NUNC PRO TUNC ASSIGNMENT (SEE DOCUMENT FOR DETAILS).
Assignors
1
FU, DIANKUI
Exec Dt:
06/27/2018
2
VIGDERMAN, LEONID
Exec Dt:
06/27/2018
3
SHEN, LINGJUAN
Exec Dt:
06/27/2018
Assignee
1
BJ SERVICES, LLC
11211 FM 2902 ROAD
TOMBALL, TEXAS 77375
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20180346800
15992882
Correspondence name and address
KEITH B. WILLHELM
618 N. POST OAK LANE
HOUSTON, TX 77024
Assignment: 10
Reel/Frame:046913/0889   Pages: 4
Recorded: 09/19/2018
Attorney Dkt #:BJSV:012
Conveyance: NUNC PRO TUNC ASSIGNMENT (SEE DOCUMENT FOR DETAILS).
Assignors
1
VIGDERMAN, LEONID
Exec Dt:
09/19/2018
2
SHEN, LINGJUAN
Exec Dt:
09/18/2018
3
FU, DIANKUI
Exec Dt:
09/19/2018
Assignee
1
BJ SERVICES, LLC
11211 FM 2920 ROAD
TOMBALL, TEXAS 77375
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20200048532
16111407
Correspondence name and address
KEITH B. WILLHELM
681 N. POST OAK LANE
HOUSTON, TX 77024
Assignment: 11
Reel/Frame:053586/0263   Pages: 4
Recorded: 08/25/2020
Attorney Dkt #:BJSV:026
Conveyance: NUNC PRO TUNC ASSIGNMENT (SEE DOCUMENT FOR DETAILS).
Assignors
1
VIGDERMAN, LEONID
Exec Dt:
09/19/2018
2
SHEN, LINGJUAN
Exec Dt:
09/18/2018
3
FU, DIANKUI
Exec Dt:
09/19/2018
Assignee
1
BJ SERVICES, LLC
11211 FM 2920 ROAD
TOMBALL, TEXAS 77375
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11306240
US20210062069
17001848
Correspondence name and address
KEITH B. WILLHELM
681 N. POST OAK LANE
HOUSTON, TX 77024
Assignment: 12
Reel/Frame:057077/0425   Pages: 4
Recorded: 08/04/2021
Attorney Dkt #:848 DIV
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
VIGDERMAN, LEONID
Exec Dt:
09/19/2018
2
SHEN, LINGJUAN
Exec Dt:
09/18/2018
3
FU, DIANKUI
Exec Dt:
09/19/2018
Assignee
1
BJ SERVICES, LLC
11211 FM 2920
TOMBALL, TEXAS 77375
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11427750
US20210363410
17393594
Correspondence name and address
WOMBLE BOND DICKINSON (US) LLP
811 MAIN STREET, SUITE 3130
HOUSTON, TX 77002
Assignment: 13
Reel/Frame:060464/0940   Pages: 4
Recorded: 07/08/2022
Attorney Dkt #:111350.0247.5
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
VIGDERMAN, LEONID
Exec Dt:
09/19/2018
2
SHEN, LINGJUAN
Exec Dt:
09/18/2018
3
FU, DIANKUI
Exec Dt:
09/19/2018
Assignee
1
BJ SERVICES, LLC
11211 FM 2920
TOMBALL, TEXAS 77375
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11639463
US20220348818
17811478
Correspondence name and address
WOMBLE BOND DICKINSON (US) LLP
ATTN: IP DOCKETING
P.O. BOX 7037
ATLANTA, GA 30357-0037
Assignment: 14
Reel/Frame:062213/0895   Pages: 4
Recorded: 12/27/2022
Attorney Dkt #:B111350 1280USC3
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
VIGDERMAN, LEONID
Exec Dt:
09/19/2018
2
SHEN, LINGJUAN
Exec Dt:
09/18/2018
3
FU, DIANKUI
Exec Dt:
09/19/2018
Assignee
1
BJ SERVICES, LLC
11211 FM 2920
TOMBALL, TEXAS 77375
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11827845
US20230133517
18146831
Correspondence name and address
WOMBLE BOND DICKINSON (US) LLP
ATTN: IP DOCKETING
P.O. BOX 7037
ATLANTA, GA 30357-0037
Assignment: 15
Reel/Frame:062214/0284   Pages: 4
Recorded: 12/27/2022
Attorney Dkt #:B111350 1280USC4
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
VIGDERMAN, LEONID
Exec Dt:
09/19/2018
2
SHEN, LINGJUAN
Exec Dt:
09/18/2018
3
FU, DIANKUI
Exec Dt:
09/19/2018
Assignee
1
BJ SERVICES, LLC
11211 FM 2920
TOMBALL, TEXAS 77375
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20230131776
18146851
Correspondence name and address
WOMBLE BOND DICKINSON (US) LLP
ATTN: IP DOCKETING
P.O. BOX 7037
ATLANTA, GA 30357-0037

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