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Patent Assignment Assignor Details
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Assignor Name : ZELENEV, ANDREI
Total Assignments: 19
Assignment: 1
Reel/Frame:027010/0569   Pages: 9
Recorded: 10/04/2011
Attorney Dkt #:P1843US01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PARNELL, EARL
Exec Dt:
09/20/2011
2
SANNER, TODD
Exec Dt:
09/20/2011
3
HOLTMYER, MARLIN
Exec Dt:
09/28/2011
4
PHILPOT, DAVID
Exec Dt:
09/20/2011
5
ZELENEV, ANDREI
Exec Dt:
09/13/2011
6
GILZOW, GYDEON
Exec Dt:
09/16/2011
7
CHAMPAGNE, LAKIA
Exec Dt:
09/13/2011
8
SIFFERMAN, THOMAS
Exec Dt:
09/13/2011
Assignee
1
CESI CHEMICAL, INC.
1004 S. PLAINSMAN ROAD
MARLOW, OKLAHOMA 73055
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8865632
NONE
12268408
Correspondence name and address
DAVID M. SULLIVAN
20 NORTH BROADWAY, SUITE 1800
OKLAHOMA CITY, OK 73102
Assignment: 2
Reel/Frame:027069/0576   Pages: 9
Recorded: 10/17/2011
Attorney Dkt #:P1843US02
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PARNELL, EARL
Exec Dt:
09/20/2011
2
GILZOW, GYDEON
Exec Dt:
09/16/2011
3
PHILPOT, DAVID
Exec Dt:
09/20/2011
4
ZELENEV, ANDREI
Exec Dt:
09/13/2011
5
CHAMPAGNE, LAKIA
Exec Dt:
09/13/2011
6
SIFFERMAN, THOMAS
Exec Dt:
09/13/2011
7
HOLTMYER, MARLIN
Exec Dt:
09/28/2011
8
SANNER, TODD
Exec Dt:
09/20/2011
Assignee
1
CESI CHEMICAL, INC.
1004 S. PLAINSMAN ROAD
MARLOW, OKLAHOMA 73055
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8916508
US20120035085
13274125
Correspondence name and address
DAVID M. SULLIVAN
20 NORTH BROADWAY, SUITE 1800
OKLAHOMA CITY, OK 73102
Assignment: 3
Reel/Frame:037493/0431   Pages: 9
Recorded: 01/14/2016
Attorney Dkt #:P1843US03
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PARNELL, EARL
Exec Dt:
09/20/2011
2
SANNER, TODD
Exec Dt:
09/20/2011
3
HOLTMYER, MARLIN
Exec Dt:
09/28/2011
4
PHILPOT, DAVID
Exec Dt:
09/20/2011
5
ZELENEV, ANDREI
Exec Dt:
09/13/2011
6
GILZOW, GYDEON
Exec Dt:
09/16/2011
7
CHAMPAGNE, LAKIA
Exec Dt:
09/13/2011
8
SIFFERMAN, THOMAS
Exec Dt:
09/13/2011
Assignee
1
CESI CHEMICAL, INC.
1004 S. PLAINSMAN ROAD
MARLOW, OKLAHOMA 73055
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20140323366
14323830
Correspondence name and address
DAVID SULLIVAN
BRANIFF BUILDING, 324 N. ROBINSON AVE.
SUITE 100
OKLAHOMA CITY, OK 73102
Assignment: 4
Reel/Frame:046509/0856   Pages: 9
Recorded: 07/31/2018
Attorney Dkt #:P1843US04
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PARNELL, EARL
Exec Dt:
09/20/2011
2
SANNER, TODD
Exec Dt:
09/20/2011
3
HOLTMYER, MARLIN
Exec Dt:
09/28/2011
4
PHILPOT, DAVID
Exec Dt:
09/20/2011
5
ZELENEV, ANDREI
Exec Dt:
09/13/2011
6
GILZOW, GYDEON
Exec Dt:
09/16/2011
7
CHAMPAGNE, LAKIA
Exec Dt:
09/13/2011
8
SIFFERMAN, THOMAS
Exec Dt:
09/13/2011
Assignee
1
CESI CHEMICAL, INC.
1004 S. PLAINSMAN ROAD
MARLOW, OKLAHOMA 73055
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10144865
US20180187068
15907226
Correspondence name and address
DAVID M. SULLIVAN
BRANIFF BUILDING
324 N. ROBINSON AVE., SUITE 100
OKLAHOMA CITY, OK 73102
Assignment: 5
Reel/Frame:054575/0305   Pages: 9
Recorded: 12/08/2020
Attorney Dkt #:P1843US05
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PARNELL, EARL
Exec Dt:
09/20/2011
2
SANNER, TODD
Exec Dt:
09/20/2011
3
HOLTMYER, MARLIN
Exec Dt:
09/28/2011
4
PHILPOT, DAVID
Exec Dt:
09/20/2011
5
ZELENEV, ANDREI
Exec Dt:
09/13/2011
6
GILZOW, GYDEON
Exec Dt:
09/16/2011
7
CHAMPAGNE, LAKIA
Exec Dt:
09/13/2011
8
SIFFERMAN, THOMAS
Exec Dt:
09/13/2011
Assignee
1
CESI CHEMICAL, INC.
1004 S. PLAINSMAN ROAD
MARLOW, OKLAHOMA 73055
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11001748
US20190093003
16206907
Correspondence name and address
DAVID M SULLIVAN
BRANIFF BUILDING
324 N. ROBINSON AVE., SUITE 100
OKLAHOMA CITY, OK 73102
Assignment: 6
Reel/Frame:031366/0588   Pages: 4
Recorded: 10/08/2013
Attorney Dkt #:P1988US01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ZELENEV, ANDREI
Exec Dt:
05/18/2012
2
CHAMPAGNE, LAKIA M.
Exec Dt:
05/21/2012
3
ZHOU, BILL
Exec Dt:
05/18/2012
4
LETT, NATHAN
Exec Dt:
05/21/2012
5
DISMUKE, KEITH
Exec Dt:
05/21/2012
6
PENNY, GLENN S.
Exec Dt:
05/22/2012
Assignee
1
CESI CHEMICAL, INC.
1004 S. PLAINSMAN ROAD
MARLOW, OKLAHOMA 73055
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9200192
US20140299325
13889709
Correspondence name and address
DAVID M. SULLIVAN
20 NORTH BROADWAY, SUITE 1800
OKLAHOMA CITY, OK 73102
Assignment: 7
Reel/Frame:030166/0191   Pages: 5
Recorded: 04/08/2013
Attorney Dkt #:P2015US01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PENNY, GLENN S.
Exec Dt:
03/22/2013
2
DISMUKE, KEITH
Exec Dt:
03/22/2013
3
FOX, RICHARD
Exec Dt:
03/27/2013
4
ZELENEV, ANDREI
Exec Dt:
03/22/2013
5
HILL, RANDAL
Exec Dt:
03/22/2013
Assignee
1
CESI CHEMICAL, INC.
1004 S. PLAINSMAN ROAD
MARLOW, OKLAHOMA 73055
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20140262288
13831410
Correspondence name and address
DAVID M. SULLIVAN
20 NORTH BROADWAY, SUITE 1800
OKLAHOMA CITY, OK 73102
Assignment: 8
Reel/Frame:033616/0150   Pages: 10
Recorded: 08/26/2014
Attorney Dkt #:C1408.70019US00
Conveyance: CONFIRMATORY ASSIGNMENT
Assignors
1
ZELENEV, ANDREI
Exec Dt:
07/21/2014
2
CHAMPAGNE, LAKIA M.
Exec Dt:
08/04/2014
3
ZHOU, BILL
Exec Dt:
07/18/2014
4
LETT, NATHAN
Exec Dt:
06/25/2014
5
DISMUKE, KEITH
Exec Dt:
07/01/2014
6
PENNY, GLENN S.
Exec Dt:
08/21/2014
Assignee
1
CESI CHEMICAL, INC.
10603 W. SAM HOUSTON PKWY N.
SUITE 300
HOUSTON, TEXAS 77064
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9200192
US20140299325
13889709
Correspondence name and address
ROBERT H. WALAT
600 ATLANTIC AVENUE
WOLF, GREENFIELD & SACKS, P.C.
BOSTON, MA 02210-2206
Assignment: 9
Reel/Frame:037109/0100   Pages: 10
Recorded: 11/13/2015
Attorney Dkt #:C1408.70019US01
Conveyance: CONFIRMATORY ASSIGNMENT
Assignors
1
ZELENEV, ANDREI
Exec Dt:
07/21/2014
2
CHAMPAGNE, LAKIA M.
Exec Dt:
08/04/2014
3
ZHOU, BILL
Exec Dt:
07/18/2014
4
LETT, NATHAN
Exec Dt:
06/25/2014
5
DISMUKE, KEITH
Exec Dt:
07/01/2014
6
PENNY, GLENN S.
Exec Dt:
08/21/2014
Assignee
1
CESI CHEMICAL, INC.
10603 W. SAM HOUSTON PKWY N.
SUITE 300
HOUSTON, TEXAS 77064
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10144862
US20160060505
14938399
Correspondence name and address
ROBERT H. WALAT
600 ATLANTIC AVENUE
WOLF, GREENFIELD & SACKS, P.C.
BOSTON, MA 02210
Assignment: 10
Reel/Frame:054257/0437   Pages: 10
Recorded: 10/30/2020
Attorney Dkt #:C1408.70059US00
Conveyance: CONFIRMATORY
Assignors
1
ZELENEV, ANDREI
Exec Dt:
07/21/2014
2
CHAMPAGNE, LAKIA M.
Exec Dt:
08/04/2014
3
ZHOU, BILL
Exec Dt:
07/18/2014
4
LETT, NATHAN L.
Exec Dt:
06/25/2014
5
DISMUKE, KEITH INGRAM
Exec Dt:
07/01/2014
6
PENNY, GLENN S.
Exec Dt:
08/21/2014
Assignee
1
CESI CHEMICAL, INC.
10603 W. SAM HOUSTON PKWY N.
SUITE 300
HOUSTON, TEXAS 77064
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11407930
US20190100689
16206245
Correspondence name and address
WOLF, GREENFIELD & SACKS, P.C.
600 ATLANTIC AVENUE
BOSTON, MA 02210-2206
Assignment: 11
Reel/Frame:033616/0428   Pages: 16
Recorded: 08/26/2014
Attorney Dkt #:C1408.70020US00
Conveyance: CONFIRMATORY ASSIGNMENT
Assignors
1
PENNY, GLENN S.
Exec Dt:
08/21/2014
2
DISMUKE, KEITH
Exec Dt:
07/01/2014
3
FOX, RICHARD
Exec Dt:
07/17/2014
4
ZELENEV, ANDREI
Exec Dt:
07/23/2014
5
HILL, RANDAL M.
Exec Dt:
08/13/2014
Assignee
1
CESI CHEMICAL, INC.
10603 W. SAM HOUSTON PKWY N.
SUITE 300
HOUSTON, TEXAS 77064
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20140262288
13831410
Correspondence name and address
ROBERT H. WALAT
600 ATLANTIC AVENUE
WOLF, GREENFIELD & SACKS, P.C.
BOSTON, MA 02210-2206
Assignment: 12
Reel/Frame:035264/0723   Pages: 21
Recorded: 03/26/2015
Attorney Dkt #:C1408.70006US03
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DISMUKE, KEITH INGRAM
Exec Dt:
09/16/2014
2
HILL, RANDAL M.
Exec Dt:
09/19/2014
3
ZELENEV, ANDREI
Exec Dt:
10/07/2014
4
SILAS, JAMES
Exec Dt:
09/16/2014
5
GERMACK, DAVID
Exec Dt:
09/19/2014
6
CHAMPAGNE, LAKIA M.
Exec Dt:
09/19/2014
7
HAMMOND, CHARLES EARL
Exec Dt:
09/15/2014
8
PURSLEY, JOHN T.
Exec Dt:
10/29/2014
9
PENNY, GLENN S.
Exec Dt:
11/04/2014
10
BRYAN, MICHAEL A.
Exec Dt:
09/15/2014
11
GREEN, MARIA ELIZABETH
Exec Dt:
09/19/2014
12
GONZALEZ-ROLDAN, MONICA
Exec Dt:
09/16/2014
13
SOEUNG, MELINDA
Exec Dt:
09/19/2014
14
SABOOWALA, HASNAIN
Exec Dt:
09/15/2014
15
FURSDON-WELSH, ANGUS
Exec Dt:
09/19/2014
16
LETT, NATHAN L.
Exec Dt:
09/19/2014
17
MAST, NICOLE
Exec Dt:
09/19/2014
18
HUGHES, JOBY
Exec Dt:
09/16/2014
Assignee
1
CESI CHEMICAL, INC.
10603 W. SAM HOUSTON PKWY N.
SUITE 300
HOUSTON, TEXAS 77064
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9884988
US20140338911
14212763
Correspondence name and address
ROBERT H. WALAT
600 ATLANTIC AVENUE
WOLF, GREENFIELD & SACKS, P.C.
BOSTON, MA 02210-2206
Assignment: 13
Reel/Frame:035687/0004   Pages: 8
Recorded: 05/21/2015
Attorney Dkt #:C1408.70029US00
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PENNY, GLENN S.
Exec Dt:
04/20/2015
2
DISMUKE, KEITH INGRAM
Exec Dt:
01/05/2015
3
FOX, RICHARD NELSON
Exec Dt:
01/06/2015
4
ZELENEV, ANDREI
Exec Dt:
01/12/2015
5
HILL, RANDAL M.
Exec Dt:
01/06/2015
Assignee
1
CESI CHEMICAL, INC.
10603 W. SAM HOUSTON PKWY N.
SUITE 300
HOUSTON, TEXAS 77064
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10590332
US20150053404
14445006
Correspondence name and address
ROBERT H. WALAT
600 ATLANTIC AVENUE
WOLF, GREENFIELD & SACKS, P.C.
BOSTON, MA 02210-2206
Assignment: 14
Reel/Frame:052697/0133   Pages: 8
Recorded: 05/19/2020
Attorney Dkt #:C1408.70029US02
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PENNY, GLENN S.
Exec Dt:
04/20/2015
2
DISMUKE, KEITH INGRAM
Exec Dt:
01/05/2015
3
FOX, RICHARD NELSON
Exec Dt:
01/06/2015
4
ZELENEV, ANDREI
Exec Dt:
01/12/2015
5
HILL, RANDAL M.
Exec Dt:
01/06/2015
Assignee
1
CESI CHEMICAL, INC.
10603 W. SAM HOUSTON PKWY N.
SUITE 300
HOUSTON, TEXAS 77064
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11634625
US20200216749
16818473
Correspondence name and address
WOLF, GREENFIELD & SACKS, P.C.
600 ATLANTIC AVENUE
BOSTON, MA 02210-2206
Assignment: 15
Reel/Frame:042119/0315   Pages: 26
Recorded: 03/31/2017
Attorney Dkt #:C1408.70029US01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
PENNY, GLENN S.
Exec Dt:
03/08/2017
2
DISMUKE, KEITH INGRAM
Exec Dt:
11/04/2016
3
FOX, RICHARD NELSON
Exec Dt:
11/03/2016
4
ZELENEV, ANDREI
Exec Dt:
11/03/2016
5
HILL, RANDAL M.
Exec Dt:
11/07/2016
Assignee
1
FLOTEK CHEMISTRY, LLC
1004 PLAINSMAN ROAD
MARLOW, OKLAHOMA 73055
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11149189
US20160312106
15146278
Correspondence name and address
WOLF, GREENFIELD & SACKS, P.C.
600 ATLANTIC AVENUE
BOSTON, MA 02210
Assignment: 16
Reel/Frame:048534/0245   Pages: 3
Recorded: 03/07/2019
Attorney Dkt #:P1843US06
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
ZELENEV, ANDREI
Exec Dt:
02/26/2019
Assignee
1
FLOTEK CHEMISTRY, LLC
10603 W. SAM HOUSTON PARKWAY N., SUITE 300
HOUSTON, TEXAS 77064
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20190153304
16250933
Correspondence name and address
DAVID M. SULLIVAN
324 NORTH ROBINSON AVENUE, SUITE 100
OKLAHOMA CITY, OK 73102
Assignment: 17
Reel/Frame:051785/0471   Pages: 8
Recorded: 02/11/2020
Attorney Dkt #:C1408.70056US01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MAST, NICOLE
Exec Dt:
10/11/2019
2
SULLIVAN, PHILIP
Exec Dt:
07/23/2019
3
ZELENEV, ANDREI
Exec Dt:
09/27/2019
4
REGMI, NINA
Exec Dt:
09/23/2019
Assignee
1
FLOTEK CHEMISTRY, LLC
10603 W. SAM HOUSTON PKWY N.
SUITE 300
HOUSTON, TEXAS 77064
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20190241796
16271136
Correspondence name and address
WOLF, GREENFIELD & SACKS, P.C.
600 ATLANTIC AVENUE
BOSTON, MA 02210-2206
Assignment: 18
Reel/Frame:061951/0025   Pages: 4
Recorded: 11/16/2022
Attorney Dkt #:C1408.70015US02-US03
Conveyance: CONFIRMATORY ASSIGNMENT
Assignor
1
ZELENEV, ANDREI
Exec Dt:
09/23/2022
Assignee
1
CESI CHEMICAL, INC.
1004 S. PLAINSMAN ROAD
MARLOW, OKLAHOMA 73055
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
10144865
US20180187068
15907226
 
11001748
US20190093003
16206907
Correspondence name and address
WOLF GREENFIELD & SACKS, P.C.
600 ATLANTIC AVENUE
BOSTON, MA 02210
Assignment: 19
Reel/Frame:063543/0550   Pages: 18
Recorded: 01/18/2023
Attorney Dkt #:C1408.70015US02-US03
Conveyance: CORRECTIVE ASSIGNMENT TO CORRECT THE THE FIF THE INVENTOR SIGNATURE BLOCK ON THE ASSIGNMENT PREVIOUSLY RECORDED AT REEL: 046509 FRAME: 0856. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT.
Assignors
1
PARNELL, EARL
Exec Dt:
09/20/2011
2
SANNER, TODD
Exec Dt:
09/20/2011
3
HOLTMYER, MARLIN
Exec Dt:
09/28/2011
4
PHILPOT, DAVID
Exec Dt:
09/20/2011
5
ZELENEV, ANDREI
Exec Dt:
09/23/2022
6
GILZOW, GYDEON
Exec Dt:
09/16/2011
7
CHAMPAGNE, LAKIA
Exec Dt:
09/13/2011
8
SIFFERMAN, THOMAS
Exec Dt:
09/13/2011
Assignee
1
CESI CHEMICAL, INC.
1004 S. PLAINSMAN ROAD
MARLOW, OKLAHOMA 73055
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
10144865
US20180187068
15907226
 
11001748
US20190093003
16206907
Correspondence name and address
WOLF GREENFIELD & SACKS, P.C.
600 ATLANTIC AVENUE
BOSTON, MA 02210

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