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Patent Assignment Assignor Details
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Assignor Name : MEEK, ROBERT K.
Total Assignments: 22
Assignment: 1
Reel/Frame:003931/0233   Pages: 2
Recorded: 11/09/1981
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
MEEK, ROBERT K.
Exec Dt:
09/04/1981
Assignee
1
PRINCE VALVE,INC., A CORP.OF OKA.
3101 N.W. 36TH
NORMAN, OKLAHOMA 73070
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4469122
NONE
06301745
Correspondence name and address
HUBBARD, THURMAN, TURNER,
TUCKER & GLASER
ATTN. E. MICKEY HUBBARD
1200 NORTH DALLAS BANK TOWER
DALLAS, TX 75230
Assignment: 2
Reel/Frame:004565/0134   Pages: 2
Recorded: 06/09/1986
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
EAGEN, DUANE M.
Exec Dt:
05/06/1986
2
MEEK, ROBERT K.
Exec Dt:
05/06/1986
Assignee
1
PRINCE VALVE, INCORPORATED
A CORP. OF DE.
NORMAN, CLEVELAND, OKLAHOMA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4687018
NONE
06871905
Correspondence name and address
ALAN T. MC COLLOM
LANEY, DOUGHERTY, HESSIN,
CLARO & BEAVERS
STE. 810, WILLIAMS CENTER TOWER I
TULSA, OK, 74103
Assignment: 3
Reel/Frame:004565/0132   Pages: 2
Recorded: 06/09/1986
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
EAGEN, DUANE M.
Exec Dt:
05/30/1986
2
MEEK, ROBERT K.
Exec Dt:
05/30/1986
Assignee
1
PRINCE VALVE, INCORPORATED
A CORP OF DE
NORMAN, CLEVELAND, OKLAHOMA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4687018
NONE
06871905
Correspondence name and address
ALAN T. MC COLLOM
LANEY, DOUGHERTY, HESSIN,
CLARO & BEAVERS
STE. 810, WILLIAMS CENTER TOWER I
TULSA, OK, 74103
Assignment: 4
Reel/Frame:006439/0939   Pages: 5
Recorded: 03/05/1993
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
COLDREN, CHARLES M.
Exec Dt:
03/05/1993
2
MEEK, ROBERT K.
Exec Dt:
03/05/1993
Assignee
1
TRI-FUELS, INC.
1015 WATERWOOD PARKWAY
EDMOND, OKLAHOMA 73034
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5429268
NONE
08026954
Correspondence name and address
SCOTT R. ZINGERMAN
HEAD & JOHNSON
SCOTT R. ZINGERMAN, ESQ.
228 WEST 17TH PLACE
TULSA, OK 74119
Assignment: 5
Reel/Frame:012591/0088   Pages: 3
Recorded: 02/08/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MEEK, ROBERT K.
Exec Dt:
08/08/2000
2
DUHN, REX E.
Exec Dt:
08/08/2000
Assignee
1
DUHN OIL TOOL, INC.
3912 GILMORE AVENUE
BAKERSFIELD, CALIFORNIA 93308
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20020070545
10071740
Correspondence name and address
CHRISTIE, PARKER & HALE, LLP
CONSTANTINE MARANTIDIS
P.O. BOX 7068
PASADENA, CA 91109-7068
Assignment: 6
Reel/Frame:011591/0319   Pages: 3
Recorded: 03/02/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MEEK, ROBERT K.
Exec Dt:
02/28/2001
2
DUHN, REX E.
Exec Dt:
02/28/2001
Assignee
1
DUHN OIL TOOL, INC.
3912 GILMORE AVENUE
BAKERSFIELD, CALIFORNIA 93308
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6543533
US20020121367
09798436
Correspondence name and address
CHRISTIE, PARKER & HALE, LLP
CONSTANTINE MARANTIDIS
P.O. BOX 7068
PASADENA, CA 91109-7068
Assignment: 7
Reel/Frame:012181/0050   Pages: 3
Recorded: 09/17/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
CARD, GARY A.
Exec Dt:
09/14/2001
2
MEEK, ROBERT K.
Exec Dt:
09/14/2001
Assignee
1
DUHN OIL TOOL, INC.
3912 GILMORE AVENUE
BAKERSFIELD, CALIFORNIA 93308
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6588510
US20030051884
09954354
Correspondence name and address
CHRISTIE, PARKER & HALE, LLP
CONSTANTINE MARANTIDIS
P.O. BOX 7068
PASADENA, CA 91109-7068
Assignment: 8
Reel/Frame:013794/0699   Pages: 3
Recorded: 02/19/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUHN, REX E.
Exec Dt:
02/15/2003
2
MEEK, ROBERT K.
Exec Dt:
02/15/2003
Assignee
1
DUHN OIL TOOL, INC.
3912 GILMORE AVENUE
BAKERSFIELD, CALIFORNIA 93308
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6920925
US20030221823
10369070
Correspondence name and address
CHRISTIE, PARKER & HALE, LLP
CONSTATINE MARANTIDIS
P.O. BOX 7068
PASADENA, CA 91109-7068
Assignment: 9
Reel/Frame:014183/0159   Pages: 3
Recorded: 06/17/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUHN, REX E.
Exec Dt:
06/06/2003
2
MEEK, ROBERT K.
Exec Dt:
06/06/2003
Assignee
1
DHUN OIL TOOL, INC.
3912 GILMORE AVENUE
BAKERSFIELD, CALIFORNIA 93308
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20030205385
10462941
Correspondence name and address
CHRISTIE, PARKER & HALE, LLP
ATTN: CONSTANTINE MARANTIDIS
P.O. BOX 7068
PASADENA, CA 91109-7068
Assignment: 10
Reel/Frame:015830/0464   Pages: 4
Recorded: 09/23/2004
Attorney Dkt #:53250/CM/D190
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUHN, REX E.
Exec Dt:
09/22/2004
2
MEEK, ROBERT K.
Exec Dt:
09/22/2004
Assignee
1
DUHN OIL TOOL, INC.
3912 GILMORE AVENUE
BAKERSFIELD, CALIFORNIA 93308
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7493944
US20050092496
10947778
Correspondence name and address
CHRISTIE, PARKER & HALE, LLP
CONSTANTINE MARANTIDIS
P.O. BOX 7068
PASADENA, CA 91109-7068
Assignment: 11
Reel/Frame:020160/0686   Pages: 4
Recorded: 11/19/2007
Attorney Dkt #:56254/D190
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUHN, REX E.
Exec Dt:
09/22/2004
2
MEEK, ROBERT K.
Exec Dt:
09/22/2004
Assignee
1
DUHN OIL TOOL, INC.
3912 GILMORE AVENUE
BAKERSFIELD, CALIFORNIA 93308
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7322407
US20060060349
11272289
Correspondence name and address
CHRISTIE, PARKER & HALE, LLP
POST OFFICE BOX 7068
PASADENA, CA 91109-7068
Assignment: 12
Reel/Frame:020955/0700   Pages: 4
Recorded: 05/15/2008
Attorney Dkt #:60164/D190
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUHN, REX E.
Exec Dt:
09/22/2004
2
MEEK, ROBERT K.
Exec Dt:
09/22/2004
Assignee
1
DUHN OIL TOOL, INC.
3912 GILMORE AVENUE
BAKERSFIELD, CALIFORNIA 93308
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7416020
US20070272402
11891431
Correspondence name and address
CHRISTIE, PARKER & HALE, LLP
P.O. BOX 7068
PASADENA, CA 91109-7068
Assignment: 13
Reel/Frame:021137/0530   Pages: 4
Recorded: 06/23/2008
Attorney Dkt #:61128/D190
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUHN, REX E.
Exec Dt:
09/22/2004
2
MEEK, ROBERT K.
Exec Dt:
09/22/2004
Assignee
1
DUHN OIL TOOL, INC.
3912 GILMORE AVENUE
BAKERSFIELD, CALIFORNIA 93308
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7726393
US20080223570
12154338
Correspondence name and address
CHRISTIE, PARKER & HALE, LLP
P.O. BOX 7068
PASADENA, CA 91109-7068
Assignment: 14
Reel/Frame:022030/0888   Pages: 4
Recorded: 12/26/2008
Attorney Dkt #:60985/D190
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUHN, REX E.
Exec Dt:
09/22/2004
2
MEEK, ROBERT K.
Exec Dt:
09/22/2004
Assignee
1
DUHN OIL TOOL, INC.
3912 GILMORE AVENUE
BAKERSFIELD, CALIFORNIA 93308
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7520322
US20080093067
12001621
Correspondence name and address
CHRISTIE, PARKER & HALE, LLP
P.O. BOX 7068
PASADENA, CA 91109-7068
Assignment: 15
Reel/Frame:026904/0622   Pages: 4
Recorded: 09/14/2011
Attorney Dkt #:65044/D190
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUHN, REX E.
Exec Dt:
09/22/2004
2
MEEK, ROBERT K.
Exec Dt:
09/22/2004
Assignee
1
DUHN OIL TOOL, INC.
3912 GILMORE AVENUE
BAKERSFIELD, CALIFORNIA 93308
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8272433
US20100193178
12757940
Correspondence name and address
CHRISTIE, PARKER & HALE, LLP
P.O. BOX 7068
PASADENA, CA 91109-7068
Assignment: 16
Reel/Frame:028548/0160   Pages: 4
Recorded: 07/13/2012
Attorney Dkt #:69660/S1358 - CM
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUHN, REX E.
Exec Dt:
09/22/2004
2
MEEK, ROBERT K.
Exec Dt:
09/22/2004
Assignee
1
DUHN OIL TOOL, INC.
3912 GILMORE AVENUE
BAKERSFIELD, CALIFORNIA 93308
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8333237
US20120227956
13480410
Correspondence name and address
CHRISTIE, PARKER & HALE, LLP
P.O. BOX 29001
GLENDALE, CA 91209
Assignment: 17
Reel/Frame:030218/0148   Pages: 4
Recorded: 04/15/2013
Attorney Dkt #:71105/CM/S1358
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
DUHN, REX E.
Exec Dt:
09/22/2004
2
MEEK, ROBERT K.
Exec Dt:
09/22/2004
Assignee
1
DUHN OIL TOOL, INC.
3912 GILMORE AVENUE
BAKERSFIELD, CALIFORNIA 93308
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8863829
US20130068447
13671415
Correspondence name and address
CHRISTIE, PARKER & HALE, LLP
P.O. BOX 29001
GLENDALE, CA 91209
Assignment: 18
Reel/Frame:028463/0457   Pages: 3
Recorded: 06/28/2012
Attorney Dkt #:69608/S1358 - CM
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
MEEK, ROBERT K.
Exec Dt:
06/13/2012
Assignee
1
SEABOARD INTERNATIONAL INC.
13815 SOUTH FREEWAY
HOUSTON, TEXAS 77245
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20120291877
13472405
Correspondence name and address
CHRISTIE, PARKER & HALE, LLP
P.O. BOX 29001
GLENDALE, CA 91209
Assignment: 19
Reel/Frame:028463/0535   Pages: 3
Recorded: 06/28/2012
Attorney Dkt #:69609/S1358 - CM
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
MEEK, ROBERT K.
Exec Dt:
06/13/2012
Assignee
1
SEABOARD INTERNATIONAL INC.
13815 SOUTH FREEWAY
HOUSTON, TEXAS 77245
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20120292550
13472403
Correspondence name and address
CHRISTIE, PARKER & HALE, LLP
P.O. BOX 29001
GLENDALE, CA 91209
Assignment: 20
Reel/Frame:033068/0615   Pages: 7
Recorded: 06/10/2014
Attorney Dkt #:091619-0949
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
MEEK, ROBERT K.
Exec Dt:
10/23/2012
2
ZHU, QINGAN
Exec Dt:
10/15/2012
3
SCHWAB, TIMOTHY
Exec Dt:
10/21/2012
Assignee
1
THE UNIVERSITY OF BRITISH COLUMBIA
UNIVERSITY INDUSTRY LIAISON OFFICE
103-6190 AGRONOMY ROAD
VANCOUVER, BC, CANADA V6T 1Z3
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20140358146
14300752
Correspondence name and address
FOLEY & LARDNER LLP
111 HUNTINGTON AVE
BOSTON, MA 02199
Assignment: 21
Reel/Frame:035389/0730   Pages: 3
Recorded: 04/13/2015
Attorney Dkt #:138457-1003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
MEEK, ROBERT K.
Exec Dt:
06/05/2014
Assignee
1
SEABOARD INTERNATIONAL, INC.
P.O. BOX 450989
HOUSTON, TEXAS 77245-0989
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20150267480
14604239
Correspondence name and address
MICHAEL W. DUBNER
GARDERE WYNNE SEWELL LLP
1601 ELM STREET, SUITE 3000
DALLAS, TX 75201-4761
Assignment: 22
Reel/Frame:062631/0816   Pages: 3
Recorded: 02/08/2023
Attorney Dkt #:3473-00200
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
MEEK, ROBERT K.
Exec Dt:
02/06/2023
Assignee
1
DUHN, REX E.
7 SWITCHBUD PLACE, SUITE 192-304
SPRING, TEXAS 77380
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11976542
NONE
18107367
Correspondence name and address
CONLEY ROSE, P.C.
777 NORTH ELDRIDGE PARKWAY
SUITE 600
HOUSTON, 77079 UNITED STATES

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