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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 : LEHR, DOUGLAS J.
Total Assignments: 29
Assignment: 1
Reel/Frame:005006/0321   Pages: 3
Recorded: 12/12/1988
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
Exec Dt:
12/02/1988
2
Exec Dt:
12/02/1988
3
Exec Dt:
12/02/1988
4
Exec Dt:
11/25/1988
Assignee
1
3900 ESSEX LANE, SUITE 1200
HOUSTON, TEXAS 77027
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
07252043
Correspondence name and address
WILLIAM C. NORVELL, JR.
HUBBARD, THURMAN, TURNER & TUCKER
6363 WOODWAY
STE. 275
HOUSTON, TX 77057
Assignment: 2
Reel/Frame:008557/0261   Pages: 3
Recorded: 05/13/1997
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
05/12/1997
2
Exec Dt:
05/12/1997
Assignee
1
5500 NORTHWEST CENTRAL DRIVE
HOUSTON, TEXAS 77092
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
08854933
Correspondence name and address
ARNOLD, WHITE & DURKEE
J. DEAN LECHTENBERGER
P.O. BOX 4433
750 BERING DRIVE, STE. 400
HOUSTON, TX 77210-4433
Assignment: 3
Reel/Frame:009521/0051   Pages: 4
Recorded: 10/12/1998
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
06/24/1998
2
Exec Dt:
03/25/1998
3
Exec Dt:
04/08/1998
4
Exec Dt:
04/08/1998
Assignee
1
5500 NORTHWEST CENTRAL DRIVE
HOUSTON, TEXAS 77092
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
09169910
Correspondence name and address
ARNOLD, WHITE & DURKEE
J. DEAN LECHTENBERGER
P.O. BOX 4433
HOUSTON, TEXAS 77210
Assignment: 4
Reel/Frame:010135/0394   Pages: 4
Recorded: 08/02/1999
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
06/26/1999
2
Exec Dt:
06/29/1999
Assignee
1
3000 UNIVERSITY DRIVE
AUBURN HILLS, MICHIGAN 48326
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
09148909
Correspondence name and address
JACOX, MECKSTROTH & JENKINS
MATTHEW R. JENKINS
2310 FAR HILLS BUILDING
DAYTON, OH 45419-1575
Assignment: 5
Reel/Frame:010975/0525   Pages: 3
Recorded: 06/30/2000
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
06/29/2000
2
Exec Dt:
06/29/2000
Assignee
1
5500 NORTHWEST CENTRAL DRIVE
HOUSTON, TEXAS 77092
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
09608052
Correspondence name and address
HOWREY, SIMON ARNOLD & WHITE, LLP
D. DELOS LARSON
750 BERING DRIVE
HOUSTON TEXAS 77057-2198
Assignment: 6
Reel/Frame:012023/0566   Pages: 3
Recorded: 07/30/2001
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
07/18/2001
2
Exec Dt:
07/18/2001
Assignee
1
5500 NORTHWEST CENTRAL DRIVE
HOUSTON, TEXAS 77092
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
09844512
Correspondence name and address
HOWREY SIMON ARNOLD & WHITE, LLP
GREGG A. DUFFEY
750 BERING DRIVE
HOUSTON, TEXAS 77057-2198
Assignment: 7
Reel/Frame:013187/0105   Pages: 4
Recorded: 08/12/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
07/24/2002
2
Exec Dt:
08/01/2002
Assignee
1
5500 NORTHWEST CENTRAL DRIVE
HOUSTON, TEXAS 77092
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10146491
Correspondence name and address
HOWREY SIMON ARNOLD & WHITE, LLP
GREGG A. DUFFEY
750 BERING DRIVE
HOUSTON, TX 77057-2198
Assignment: 8
Reel/Frame:013187/0130   Pages: 4
Recorded: 08/12/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
07/24/2002
2
Exec Dt:
08/01/2002
Assignee
1
5500 NORTHWEST CENTRAL DRIVE
HOUSTON, TEXAS 77092
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10146491
Correspondence name and address
HOWREY SIMON ARNOLD & WHITE, LLP
GREGG A. DUFFEY
750 BERING DRIVE
HOUSTON, TX 77057-2198
Assignment: 9
Reel/Frame:013493/0733   Pages: 4
Recorded: 11/18/2002
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
07/24/2002
2
Exec Dt:
08/01/2002
Assignee
1
5500 NORTHWEST CENTRAL DRIVE
HOUSTON, TEXAS 77092
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10146467
Correspondence name and address
HOWREY, SIMON, ARNOLD & WHITE, LLP
GREGG A. DUFFEY
750 BERING DRIVE
HOUSTON, TX 77057-2198
Assignment: 10
Reel/Frame:014482/0200   Pages: 8
Recorded: 09/10/2003
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
08/29/2003
2
Exec Dt:
08/29/2003
3
Exec Dt:
09/03/2003
4
Exec Dt:
09/02/2003
5
Exec Dt:
09/08/2003
6
Exec Dt:
09/02/2003
7
Exec Dt:
08/28/2003
Assignee
1
5500 NORTHWEST CENTRAL DRIVE
HOUSTON, TEXAS 77092
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10658979
Correspondence name and address
HOWREY SIMON ARNOLD & WHITE, LLP
GREGG A. DUFFEY
750 BERING DRIVE
HOUSTON, TX 77057-2198
Assignment: 11
Reel/Frame:015314/0902   Pages: 3
Recorded: 05/07/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
Exec Dt:
05/06/2004
Assignee
1
5500 NORTHWEST CENTRAL DRIVE
HOUSTON, TEXAS 77092
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10841797
Correspondence name and address
HOWREY SIMON ARNOLD ET.AL.
J. DEAN LECHTENBERGER
750 BERING DR
HOUSTON, TX 77057
Assignment: 12
Reel/Frame:016426/0814   Pages: 4
Recorded: 06/28/2005
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
06/08/2005
2
Exec Dt:
06/08/2005
3
Exec Dt:
06/08/2005
Assignee
1
5500 NORTHWEST CENTRAL DRIVE
HOUSTON, TEXAS 77092
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
11109574
Correspondence name and address
TYLER T. VANHOUTAN
HOWREY, LLP
752 BERING DRIVE
HOUSTON, TEXAS 77057-2198
Assignment: 13
Reel/Frame:018674/0706   Pages: 5
Recorded: 12/20/2006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
09/12/2006
2
Exec Dt:
09/01/2006
Assignee
1
4601 WESTWAY PARK BLVD.
HOUSTON, TEXAS 77041
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
11521017
Correspondence name and address
REXFORD A. JOHNSON, ESQ.
HOWREY LLP
2941 FAIRVIEW PARK DRIVE, BOX 7
FALLS CHURCH, TEXAS 22042
Assignment: 14
Reel/Frame:018677/0127   Pages: 4
Recorded: 12/21/2006
Attorney Dkt #:10286.0415.NPUS01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
11/09/2006
2
Exec Dt:
11/09/2006
Assignee
1
4601 WESTWAY PARK BLVD.
HOUSTON, TEXAS 77041
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11595792
Correspondence name and address
REXFORD A. JOHNSON, ESQ.
HOWREY LLP
2941 FAIRVIEW PARK DRIVE, BOX 7
FALLS CHURCH, TEXAS 22042
Assignment: 15
Reel/Frame:018862/0926   Pages: 8
Recorded: 02/06/2007
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
12/07/2006
2
Exec Dt:
12/06/2006
3
Exec Dt:
09/05/2006
4
Exec Dt:
01/15/2007
5
Exec Dt:
12/17/2006
6
Exec Dt:
12/08/2006
Assignee
1
4601 WESTWAY PARK BLVD.
HOUSTON, TEXAS 77041
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11520100
Correspondence name and address
REXFORD A. JOHNSON, ESQ.
HOWREY LLP
2941 FAIRVIEW PARK DRIVE, BOX 7
FALLS CHURCH, TEXAS 22042
Assignment: 16
Reel/Frame:018815/0882   Pages: 4
Recorded: 01/24/2007
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
01/08/2007
2
Exec Dt:
01/08/2007
Assignee
1
4601 WESTWAY PARK BLVD.
HOUSTON, TEXAS 77041
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
11483917
Correspondence name and address
REXFORD A. JOHNSON, ESQ.
HOWREY LLP
2941 FAIRVIEW PARK DRIVE, BOX 7
FALLS CHURCH, VA 22042
Assignment: 17
Reel/Frame:018953/0452   Pages: 5
Recorded: 02/22/2007
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
02/08/2007
2
Exec Dt:
02/08/2007
3
Exec Dt:
02/13/2007
Assignee
1
4601 WESTWAY PARK BLVD.
HOUSTON, TEXAS 77041
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
11644443
Correspondence name and address
REXFORD A. JOHNSON, ESQ.
HOWREY LLP
2941 FAIRVIEW PARK DRIVE, BOX 7
FALL CHURCH, VA 22042
Assignment: 18
Reel/Frame:028305/0205   Pages: 4
Recorded: 06/01/2012
Attorney Dkt #:R&S4-53420-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
06/01/2012
2
Exec Dt:
06/01/2012
Assignee
1
2929 ALLEN PARKWAY
SUITE 2100
HOUSTON, TEXAS 77019
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
13471900
Correspondence name and address
SHAWN HUNTER / BAKER HUGHES FILINGS
P.O. BOX 270110
HOUSTON, TX 77277-0110
Assignment: 19
Reel/Frame:028352/0827   Pages: 5
Recorded: 06/11/2012
Attorney Dkt #:R&S4-53131-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
06/11/2012
2
Exec Dt:
06/04/2012
3
Exec Dt:
06/04/2012
Assignee
1
2929 ALLEN PARKWAY, SUITE 2100
HOUSTON, TEXAS 77019-2118
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
13472128
Correspondence name and address
ANTHONY F. MATHENY
1000 LOUISIANA STREET, SUITE 1700
HOUSTON, TX 77002
Assignment: 20
Reel/Frame:028509/0329   Pages: 5
Recorded: 07/06/2012
Attorney Dkt #:GLB 073 PA
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
07/03/2012
2
Exec Dt:
07/03/2012
3
Exec Dt:
07/03/2012
Assignee
1
2275 STANLEY AVENUE
DAYTON, OHIO 45404
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
13541982
Correspondence name and address
STEVENS & SHOWALTER LLP
7019 CORPORATE WAY
DAYTON, OH 45459
Assignment: 21
Reel/Frame:029160/0910   Pages: 5
Recorded: 10/19/2012
Attorney Dkt #:BAO0998US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
08/15/2012
2
Exec Dt:
08/15/2012
3
Exec Dt:
08/16/2012
Assignee
1
2929 ALLEN PARKWAY
SUITE 2100
HOUSTON, TEXAS 77019-2118
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
13584328
Correspondence name and address
CANTOR COLBURN LLP- BAKER HUGHES INCORPO
20 CHURCH STREET
22ND FLOOR
HARTFORD, CT 06103
Assignment: 22
Reel/Frame:029868/0434   Pages: 6
Recorded: 02/25/2013
Attorney Dkt #:R&S4-54782-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
02/25/2013
2
Exec Dt:
02/25/2013
3
Exec Dt:
02/25/2013
4
Exec Dt:
02/25/2013
Assignee
1
2929 ALLEN PARKWAY, SUITE 2100
HOUSTON, TEXAS 77019-2118
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
13742395
Correspondence name and address
ANTHONY F. MATHENY
1000 LOUISIANA STREET, SUITE 1700
HOUSTON, TX 77002
Assignment: 23
Reel/Frame:029962/0166   Pages: 7
Recorded: 03/11/2013
Attorney Dkt #:RS4-55244-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
03/08/2013
2
Exec Dt:
03/07/2013
3
Exec Dt:
03/08/2013
4
Exec Dt:
03/07/2013
5
Exec Dt:
03/07/2013
Assignee
1
2929 ALLEN PARKWAY
SUITE 2100
HOUSTON, TEXAS 77019-2118
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
13791412
Correspondence name and address
MOSSMAN KUMAR & TYLER PC
P.O. BOX 421239
HOUSTON, TX 77242
Assignment: 24
Reel/Frame:030758/0559   Pages: 8
Recorded: 07/09/2013
Attorney Dkt #:BAO0858USP2
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
05/24/2013
2
Exec Dt:
05/29/2013
3
Exec Dt:
05/24/2013
4
Exec Dt:
05/24/2013
5
Exec Dt:
05/24/2013
Assignee
1
2929 ALLEN PARKWAY
SUITE 2100
HOUSTON, TEXAS 77019-2118
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
13839365
Correspondence name and address
CANTOR COLBURN LLP- BAKER HUGHES INCORPO
20 CHURCH STREET
22ND FLOOR
HARTFORD, CT 06103
Assignment: 25
Reel/Frame:034813/0603   Pages: 3
Recorded: 01/26/2015
Attorney Dkt #:19936.176US01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
Exec Dt:
01/23/2015
Assignee
1
P.O. BOX 4740
HOUSTON, TEXAS 77210
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
14605467
Correspondence name and address
PARSONS BEHLE & LATIMER ATTN: DOCKETING
800 W. MAIN STREET, SUITE 1300
BOISE, ID 83702
Assignment: 26
Reel/Frame:035811/0265   Pages: 3
Recorded: 06/09/2015
Attorney Dkt #:RNS4-59499-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
05/12/2015
2
Exec Dt:
05/28/2015
Assignee
1
2929 ALLEN PARKWAY, SUITE 2100
HOUSTON, TEXAS 77019-2118
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
14734790
Correspondence name and address
STEVE ROSENBLATT
P.O. BOX 421239
HOUSTON, TX 77242
Assignment: 27
Reel/Frame:036600/0320   Pages: 9
Recorded: 09/18/2015
Attorney Dkt #:R&S4-58900-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
08/31/2015
2
Exec Dt:
09/15/2015
3
Exec Dt:
08/31/2015
4
Exec Dt:
08/31/2015
5
Exec Dt:
08/30/2015
6
Exec Dt:
08/31/2015
Assignee
1
2929 ALLEN PARKWAY
SUITE 2100
HOUSTON, TEXAS 77019
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
14858236
Correspondence name and address
SHAWN HUNTER / BAKER HUGHES FILINGS
P.O. BOX 270110
HOUSTON, TX 77277-0110
Assignment: 28
Reel/Frame:038731/0861   Pages: 3
Recorded: 05/26/2016
Attorney Dkt #:TTF4-61170-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
Exec Dt:
05/23/2016
Assignee
1
2929 ALLEN PARKWAY, SUITE 2100
HOUSTON, TEXAS 77019-2118
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
15165986
Correspondence name and address
STEVE ROSENBLATT
P.O. BOX 421239
HOUSTON, TX 77242
Assignment: 29
Reel/Frame:044845/0314   Pages: 9
Recorded: 02/06/2018
Attorney Dkt #:ICD4-64176USNP/BAO1677US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
11/20/2017
2
Exec Dt:
11/20/2017
3
Exec Dt:
11/20/2017
4
Exec Dt:
11/20/2017
5
Exec Dt:
11/27/2017
6
Exec Dt:
11/20/2017
Assignee
1
17021 ALDINE WESTFIELD
HOUSTON, TEXAS 77073
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
15818305
Correspondence name and address
CANTOR COLBURN LLP- BAKER HUGHES INCORPO
20 CHURCH STREET
22ND FLOOR
HARTFORD, CT 06103

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