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Patent Assignment Assignee Details
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Assignee Name : HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
Total Assignments: 17
Assignment: 1
Reel/Frame:028032/0620   Pages: 2
Recorded: 04/12/2012
Attorney Dkt #:02905-511
Conveyance: MERGER (SEE DOCUMENT FOR DETAILS).
Assignor
1
COGNITIVE CONCEPTS, INC.
Exec Dt:
10/14/2003
Assignee
1
HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
222 BERKELEY STREET
BOSTON, MASSACHUSETTS 02116
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
6755657
NONE
09710611
Correspondence name and address
JASON MIRABITO
ONE FINANCIAL CENTER
MINTZ LEVIN, P.C.
BOSTON, MA 02111
Assignment: 2
Reel/Frame:020832/0652   Pages: 6
Recorded: 04/21/2008
Attorney Dkt #:HMCO-0001&0002-P60&1-P01
Conveyance: CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
Assignor
1
HOUGHTON MIFFLIN COMPANY
Exec Dt:
04/20/2006
Assignee
1
HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
222 BERKELEY STREET
BOSTON, MASSACHUSETTS 02116
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20030180703
10353814
Correspondence name and address
STARTEGIC PATENTS P.C.
P.O.BOX 920629
NEEDHAM, MA 02492
Assignment: 3
Reel/Frame:021086/0666   Pages: 5
Recorded: 06/12/2008
Attorney Dkt #:HMCO-0002-P01 THRU P10
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ROGERS, TIMOTHY A.
Exec Dt:
04/11/2008
2
BOSKO, JOHN
Exec Dt:
05/30/2008
3
O'BRIEN, COREY S.
Exec Dt:
06/03/2008
4
MUTUM, RAGHUBIR S.
Exec Dt:
04/13/2008
Assignee
1
HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
222 BERKELEY STREET
BOSTON, MASSACHUSETTS 02116
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
NONE
US20080102430
11853445
 
7886029
US20080133964
11853463
 
9230445
US20080104618
11853478
 
9111455
US20080102431
11853495
 
NONE
US20080102432
11853543
 
10861343
US20080108038
11853560
 
9111456
US20080102433
11853584
 
9142136
US20080102434
11853601
 
9390629
US20080102435
11853608
 
9892650
US20080096178
11853619
Correspondence name and address
STRATEGIC PATENTS P.C.
P.O.BOX 920629
NEEDHAM, MA 02492
Assignment: 4
Reel/Frame:021827/0394   Pages: 5
Recorded: 11/13/2008
Attorney Dkt #:HMCO-0002-P11 THRU P-19
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ROGERS, TIMOTHY A.
Exec Dt:
04/11/2008
2
BOSKO, JOHN
Exec Dt:
05/30/2008
3
O'BRIEN, COREY S.
Exec Dt:
06/30/2008
4
MUTUM, RAGHUBIR S.
Exec Dt:
04/13/2008
Assignee
1
HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
222 BERKELEY STREET
BOSTON, MASSACHUSETTS 02116
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
NONE
US20080096179
11877280
 
9536441
US20080254435
11877351
 
7713065
US20080108040
11877372
 
9536442
US20080102436
11877385
 
NONE
US20080096180
11877398
 
NONE
US20080096181
11877411
 
9355570
US20080096176
11877428
 
8219021
US20080102437
11877440
 
9396664
US20080108039
11877460
Correspondence name and address
STRATEGIC PATENTS P.C.
P.O.BOX 920629
NEEDHAM, MA 02492
Assignment: 5
Reel/Frame:026770/0949   Pages: 4
Recorded: 08/18/2011
Attorney Dkt #:HMCO-0002-P20, P21, P22
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ROGERS, TIMOTHY A.
Exec Dt:
04/11/2008
2
BOSKO, JOHN
Exec Dt:
05/30/2008
3
O'BRIEN, COREY
Exec Dt:
06/03/2008
4
MUTUM, RAGHUBIR S.
Exec Dt:
04/13/2008
Assignee
1
HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
222 BERKELEY STREET
BOSTON, MASSACHUSETTS 02116
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
9396665
US20090233264
12470840
 
9368041
US20090226873
12470913
 
8128415
US20100055659
12551764
Correspondence name and address
STRATEGIC PATENTS P.C.
P.O.BOX 920629
NEEDHAM, MA 02492
Assignment: 6
Reel/Frame:027781/0820   Pages: 4
Recorded: 02/29/2012
Attorney Dkt #:HMCO-0002-P23
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ROGERS, TIMOTHY A.
Exec Dt:
04/11/2008
2
BOSKO, JOHN, IV
Exec Dt:
05/30/2008
3
O'BRIEN, COREY S.
Exec Dt:
06/03/2008
4
MUTUM, RAGHUBIR S.
Exec Dt:
04/13/2008
Assignee
1
HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
222 BERKELEY STREET
BOSTON, MASSACHUSETTS 02116
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8297984
US20120122068
13358956
Correspondence name and address
STRATEGIC PATENTS P.C.
P.O.BOX 920629
NEEDHAM, MA 02492
Assignment: 7
Reel/Frame:030167/0112   Pages: 5
Recorded: 04/08/2013
Attorney Dkt #:HMCO-0002-PXX
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ROGERS, TIMOTHY A.
Exec Dt:
04/11/2008
2
BOSKO, JOHN, IV
Exec Dt:
05/30/2008
3
O'BRIEN, COREY S.
Exec Dt:
06/03/2008
4
MUTUM, RAGHUBIR S.
Exec Dt:
04/13/2008
Assignee
1
HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
222 BERKELEY STREET
BOSTON, MASSACHUSETTS 02116
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
10127826
US20120264100
13529015
 
NONE
US20130029310
13626671
Correspondence name and address
STRATEGIC PATENTS P.C.
P.O.BOX 920629
NEEDHAM, MA 02492
Assignment: 8
Reel/Frame:036663/0615   Pages: 5
Recorded: 09/27/2015
Attorney Dkt #:HMCO-0002-P26
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ROGERS, TIMOTHY A.
Exec Dt:
04/11/2008
2
BOSKO, JOHN
Exec Dt:
05/30/2008
3
O'BRIEN, COREY S.
Exec Dt:
06/03/2008
4
MUTUM, RAGHUBIR S.
Exec Dt:
04/13/2008
Assignee
1
HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
222 BERKELEY STREET
BOSTON, MASSACHUSETTS 02116
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9672753
US20160012744
14859600
Correspondence name and address
GTC LAW GROUP LLP & AFFILIATES
C/O CPA GLOBAL
P.O. BOX 52050
MINNEAPOLIS, MN 55402
Assignment: 9
Reel/Frame:037288/0072   Pages: 5
Recorded: 12/14/2015
Attorney Dkt #:HMCO-0002-P27
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
ROGERS, TIMOTHY A.
Exec Dt:
04/11/2008
2
BOSKO, JOHN
Exec Dt:
05/30/2008
3
O'BRIEN, COREY S.
Exec Dt:
06/03/2008
4
MUTUM, RAGHUBIR S.
Exec Dt:
04/13/2008
Assignee
1
HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
222 BERKELEY STREET
BOSTON, MASSACHUSETTS 02116
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20160098939
14967759
Correspondence name and address
GTC LAW GROUP LLP & AFFILIATES
C/O CPA GLOBAL
P.O. BOX 52050
MINNEAPOLIS, MN 55402
Assignment: 10
Reel/Frame:028550/0338   Pages: 6
Recorded: 07/13/2012
Attorney Dkt #:19093-007
Conveyance: RELEASE OF SECURITY INTEREST IN AND LIEN ON PATENTS
Assignor
1
CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH (F/K/A CREDIT SUISSE, CAYMAN ISLANDS BRANCH)
Exec Dt:
03/09/2010
Assignees
1
HMH PUBLISHING COMPANY LIMITED
222 BERKELEY STREET
BOSTON, MASSACHUSETTS 02116
2
HOUGHTON MIFFLIN HARCOURT PUBLISHERS INC.
222 BERKELEY STREET
BOSTON, MASSACHUSETTS 02116
3
HMH PUBLISHERS LLC
222 BERKELEY STREET
BOSTON, MASSACHUSETTS 02116
4
HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
222 BERKELEY STREET
BOSTON, MASSACHUSETTS 02116
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
6146147
NONE
09039194
 
6299452
NONE
09350791
 
6511324
NONE
09414393
 
6418298
NONE
09599937
 
6585517
US20010049085
09910571
 
6435877
US20010046658
09910575
 
NONE
US20040034532
10219458
 
NONE
US20050089829
10609445
Correspondence name and address
MITCHEL R. CARBULLIDO
1285 AVENUE OF THE AMERICAS
NEW YORK, NY 10019-6064
Assignment: 11
Reel/Frame:028542/0081   Pages: 7
Recorded: 07/10/2012
Attorney Dkt #:19093-007
Conveyance: RELEASE OF SECURITY INTEREST IN AND LIEN ON PATENTS
Assignor
1
CITIBANK, N.A.
Exec Dt:
06/22/2012
Assignee
1
HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
222 BERKELEY STREET
BOSTON, MASSACHUSETTS 02116
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
4674066
NONE
06835659
 
NONE
US20040034532
10219458
 
NONE
US20040073430
10267929
 
NONE
US20030180703
10353814
Correspondence name and address
MITCHEL R. CARBULLIDO
1285 AVENUE OF THE AMERICAS
NEW YORK, NY 10019-6064
Assignment: 12
Reel/Frame:028542/0420   Pages: 8
Recorded: 07/10/2012
Attorney Dkt #:19093-007
Conveyance: RELEASE OF SECURITY INTEREST IN AND LIEN ON PATENTS
Assignor
1
THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Exec Dt:
06/22/2012
Assignees
1
COGNITIVE CONCEPTS, INC.
222 BERKELEY STREET
BOSTON, MASSACHUSETTS 02116
2
THE RIVERSIDE PUBLISHING COMPANY
3800 GOLF ROAD, SUITE 100
ROLLING MEADOWS, ILLINOIS 60008
3
HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
222 BERKELEY STREET
BOSTON, MASSACHUSETTS 02116
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
6112049
NONE
08955133
 
6146147
NONE
09039194
 
6299452
NONE
09350791
 
6511324
NONE
09414393
 
6418298
NONE
09599937
 
6755657
NONE
09710611
 
6585517
US20010049085
09910571
 
6435877
US20010046658
09910575
 
NONE
US20080102430
11853445
 
7886029
US20080133964
11853463
 
9230445
US20080104618
11853478
 
9111455
US20080102431
11853495
 
NONE
US20080102432
11853543
 
9111456
US20080102433
11853584
 
9142136
US20080102434
11853601
 
9390629
US20080102435
11853608
 
9892650
US20080096178
11853619
 
9536441
US20080254435
11877351
 
7713065
US20080108040
11877372
 
9536442
US20080102436
11877385
 
9355570
US20080096176
11877428
 
8219021
US20080102437
11877440
 
9396664
US20080108039
11877460
Correspondence name and address
MITCHEL R. CARBULLIDO
1285 AVENUE OF THE AMERICAS
NEW YORK, NY 10019-6064
Assignment: 13
Reel/Frame:031303/0861   Pages: 6
Recorded: 09/27/2013
Attorney Dkt #:0046490.137
Conveyance: ARTICLES OF MERGER
Assignor
1
COGNITIVE CONCEPTS, INC.
Exec Dt:
12/27/2012
Assignee
1
HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
222 BERKELEY STREET
BOSTON, MASSACHUSETTS 02116
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
6146147
NONE
09039194
 
6299452
NONE
09350791
 
6511324
NONE
09414393
 
6755657
NONE
09710611
 
6585517
US20010049085
09910571
 
6435877
US20010046658
09910575
Correspondence name and address
MICHAEL J. BEVILACQUA, ESQ.
WILMER CUTLER PICKERING HALE AND DORRLLP
60 STATE STREET
BOSTON, MA 02109
Assignment: 14
Reel/Frame:059545/0302   Pages: 10
Recorded: 04/08/2022
Conveyance: RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS).
Assignor
1
CITIBANK, N.A.
Exec Dt:
04/07/2022
Assignees
1
HOUGHTON MIFFLIN HARCOURT PUBLISHERS INC.
125 HIGH STREET
BOSTON, MASSACHUSETTS 02110
2
HMH PUBLISHERS LLC
125 HIGH STREET
BOSTON, MASSACHUSETTS 02110
3
HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
125 HIGH STREET
BOSTON, MASSACHUSETTS 02110
4
HOUGHTON MIFFLIN HARCOURT COMPANY
125 HIGH STREET
BOSTON, MASSACHUSETTS 02110
5
GREENWOOD PUBLISHING GROUP, LLC
125 HIGH STREET
BOSTON, MASSACHUSETTS 02110
6
HOUGHTON MIFFLIN COMPANY INTERNATIONAL, INC.
125 HIGH STREET
BOSTON, MASSACHUSETTS 02110
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
6252604
NONE
08783290
 
6112049
NONE
08955133
 
6146147
NONE
09039194
 
6299452
NONE
09350791
 
6511324
NONE
09414393
 
6418298
NONE
09599937
 
6755657
NONE
09710611
 
6585517
US20010049085
09910571
 
6435877
US20010046658
09910575
 
7886029
US20080133964
11853463
 
9230445
US20080104618
11853478
 
9111455
US20080102431
11853495
 
10861343
US20080108038
11853560
 
9111456
US20080102433
11853584
 
9142136
US20080102434
11853601
 
9390629
US20080102435
11853608
 
9892650
US20080096178
11853619
 
9536441
US20080254435
11877351
 
7713065
US20080108040
11877372
 
9536442
US20080102436
11877385
 
9355570
US20080096176
11877428
 
8219021
US20080102437
11877440
 
9396664
US20080108039
11877460
 
9396665
US20090233264
12470840
 
9368041
US20090226873
12470913
 
8128415
US20100055659
12551764
 
8297984
US20120122068
13358956
 
10127826
US20120264100
13529015
 
9672753
US20160012744
14859600
Correspondence name and address
SOPHIA ZANDER
599 LEXINGTON AVE
NEW YORK, NY 10022
Assignment: 15
Reel/Frame:059545/0500   Pages: 10
Recorded: 04/08/2022
Conveyance: RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS).
Assignor
1
CITIBANK, N.A.
Exec Dt:
04/07/2022
Assignees
1
HOUGHTON MIFFLIN HARCOURT PUBLISHERS INC.
125 HIGH STREET
BOSTON, MASSACHUSETTS 02110
2
HMH PUBLISHERS LLC
125 HIGH STREET
BOSTON, MASSACHUSETTS 02110
3
HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
125 HIGH STREET
BOSTON, MASSACHUSETTS 02110
4
HOUGHTON MIFFLIN HARCOURT COMPANY
125 HIGH STREET
BOSTON, MASSACHUSETTS 02110
5
GREENWOOD PUBLISHING GROUP, LLC
125 HIGH STREET
BOSTON, MASSACHUSETTS 02110
6
HOUGHTON MIFFLIN COMPANY INTERNATIONAL, INC.
125 HIGH STREET
BOSTON, MASSACHUSETTS 02110
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
6252604
NONE
08783290
 
6112049
NONE
08955133
 
6146147
NONE
09039194
 
6299452
NONE
09350791
 
6511324
NONE
09414393
 
6418298
NONE
09599937
 
6755657
NONE
09710611
 
6585517
US20010049085
09910571
 
6435877
US20010046658
09910575
 
7886029
US20080133964
11853463
 
9230445
US20080104618
11853478
 
9111455
US20080102431
11853495
 
10861343
US20080108038
11853560
 
9111456
US20080102433
11853584
 
9142136
US20080102434
11853601
 
9390629
US20080102435
11853608
 
9892650
US20080096178
11853619
 
9536441
US20080254435
11877351
 
7713065
US20080108040
11877372
 
9536442
US20080102436
11877385
 
9355570
US20080096176
11877428
 
8219021
US20080102437
11877440
 
9396664
US20080108039
11877460
 
9396665
US20090233264
12470840
 
9368041
US20090226873
12470913
 
8128415
US20100055659
12551764
 
8297984
US20120122068
13358956
 
10127826
US20120264100
13529015
 
9672753
US20160012744
14859600
Correspondence name and address
SOPHIA ZANDER
599 LEXINGTON AVE
NEW YORK, NY 10022
Assignment: 16
Reel/Frame:059545/0542   Pages: 10
Recorded: 04/08/2022
Conveyance: RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS).
Assignor
1
CITIBANK, N.A.
Exec Dt:
04/07/2022
Assignees
1
HOUGHTON MIFFLIN HARCOURT PUBLISHERS INC.
125 HIGH STREET
BOSTON, MASSACHUSETTS 02110
2
HMH PUBLISHERS LLC
125 HIGH STREET
BOSTON, MASSACHUSETTS 02110
3
HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
125 HIGH STREET
BOSTON, MASSACHUSETTS 02110
4
HOUGHTON MIFFLIN HARCOURT COMPANY
125 HIGH STREET
BOSTON, MASSACHUSETTS 02110
5
GREENWOOD PUBLISHING GROUP, LLC
125 HIGH STREET
BOSTON, MASSACHUSETTS 02110
6
HOUGHTON MIFFLIN COMPANY INTERNATIONAL, INC.
125 HIGH STREET
BOSTON, MASSACHUSETTS 02110
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
6252604
NONE
08783290
 
6112049
NONE
08955133
 
6146147
NONE
09039194
 
6299452
NONE
09350791
 
6511324
NONE
09414393
 
6418298
NONE
09599937
 
6755657
NONE
09710611
 
6585517
US20010049085
09910571
 
6435877
US20010046658
09910575
 
7886029
US20080133964
11853463
 
9230445
US20080104618
11853478
 
9111455
US20080102431
11853495
 
10861343
US20080108038
11853560
 
9111456
US20080102433
11853584
 
9142136
US20080102434
11853601
 
9390629
US20080102435
11853608
 
9892650
US20080096178
11853619
 
9536441
US20080254435
11877351
 
7713065
US20080108040
11877372
 
9536442
US20080102436
11877385
 
9355570
US20080096176
11877428
 
8219021
US20080102437
11877440
 
9396664
US20080108039
11877460
 
9396665
US20090233264
12470840
 
9368041
US20090226873
12470913
 
8128415
US20100055659
12551764
 
8297984
US20120122068
13358956
 
10127826
US20120264100
13529015
 
9672753
US20160012744
14859600
Correspondence name and address
SOPHIA ZANDER
599 LEXINGTON AVE
NEW YORK, NY 10022
Assignment: 17
Reel/Frame:063476/0503   Pages: 13
Recorded: 04/28/2023
Attorney Dkt #:45447.00067
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
NWEA
Exec Dt:
04/28/2023
Assignee
1
HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
125 HIGH STREET
BOSTON, MASSACHUSETTS 02110
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
6511326
NONE
09604130
 
7878810
US20080176203
11972411
Correspondence name and address
JOHN GARCES
MILBANK LLP
55 HUDSON YARDS
NEW YORK, NY 10001

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