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Patent Assignment Assignee Details
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Assignee Name : X4 PHARMACEUTICALS, INC.
Total Assignments: 27
Assignment: 1
Reel/Frame:046138/0232   Pages: 4
Recorded: 06/20/2018
Attorney Dkt #:394259-013US1 (161400)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
06/08/2017
2
Exec Dt:
05/09/2017
Assignee
1
955 MASSACHUSETTS AVENUE, 4TH FLOOR
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
16061974
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110-2605
Assignment: 2
Reel/Frame:046164/0421   Pages: 6
Recorded: 06/21/2018
Attorney Dkt #:394259-001US1 (161390)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
06/08/2017
2
Exec Dt:
06/13/2017
Assignee
1
955 MASSACHUSETTS AVENUE, 4TH FLOOR
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
16062004
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110
Assignment: 3
Reel/Frame:046178/0720   Pages: 4
Recorded: 06/22/2018
Attorney Dkt #:394259-002US1 (161399)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
06/08/2017
2
Exec Dt:
05/09/2017
Assignee
1
955 MASSACHUSETTS AVENUE, 4TH FLOOR
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
16065470
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110-2605
Assignment: 4
Reel/Frame:052285/0685   Pages: 4
Recorded: 04/01/2020
Attorney Dkt #:394259-002USC1 (172327)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
06/08/2017
2
Exec Dt:
05/09/2017
Assignee
1
955 MASSACHUSETTS AVENUE
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
16804863
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110-2605
Assignment: 5
Reel/Frame:058404/0149   Pages: 4
Recorded: 12/16/2021
Attorney Dkt #:394259-002USC2 (187737)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
06/08/2017
2
Exec Dt:
05/09/2017
Assignee
1
61 NORTH BEACON STREET, 4TH FLOOR
BOSTON, MASSACHUSETTS 02134
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
17644295
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110
Assignment: 6
Reel/Frame:055879/0116   Pages: 6
Recorded: 04/09/2021
Attorney Dkt #:394259-005USC1 (182562)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
01/26/2018
2
Exec Dt:
01/26/2018
Assignee
1
955 MASSACHUSETTS AVENUE
4TH FLOOR
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
17208774
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110
Assignment: 7
Reel/Frame:047831/0205   Pages: 5
Recorded: 12/20/2018
Attorney Dkt #:394259-003US1 (161387)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
12/20/2018
2
Exec Dt:
09/25/2018
Assignee
1
955 MASSACHUSETTS AVENUE
4TH FLOOR
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
16070991
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110-2605
Assignment: 8
Reel/Frame:051507/0124   Pages: 5
Recorded: 01/14/2020
Attorney Dkt #:394259-009US1 (171262)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
12/28/2018
2
Exec Dt:
02/15/2019
Assignee
1
955 MASSACHUSETTS AVENUE
4TH FLOOR
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
16625006
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110-2605
Assignment: 9
Reel/Frame:048248/0281   Pages: 4
Recorded: 02/06/2019
Attorney Dkt #:394259-004US1 (163249)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
Exec Dt:
02/05/2019
Assignee
1
955 MASSACHUSETTS AVENUE
4TH FLOOR
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
16091689
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110-2605
Assignment: 10
Reel/Frame:048479/0077   Pages: 6
Recorded: 03/01/2019
Attorney Dkt #:394259-006US1 (164734)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
02/10/2019
2
Exec Dt:
02/05/2019
Assignee
1
955 MASSACHUSETTS AVENUE
4TH FLOOR
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
16311020
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110-2605
Assignment: 11
Reel/Frame:048479/0251   Pages: 6
Recorded: 03/01/2019
Attorney Dkt #:394259-005US1 (164739)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
02/10/2019
2
Exec Dt:
02/05/2019
Assignee
1
955 MASSACHUSETTS AVENUE
4TH FLOOR
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
16311083
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110-2605
Assignment: 12
Reel/Frame:049551/0194   Pages: 5
Recorded: 06/21/2019
Attorney Dkt #:394259-007US1 (164729)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
02/10/2019
2
Exec Dt:
02/05/2019
Assignee
1
955 MASSACHUSETTS AVENUE
4TH FLOOR
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
16311055
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110-2605
Assignment: 13
Reel/Frame:053135/0676   Pages: 6
Recorded: 07/07/2020
Attorney Dkt #:394359-011US1 (174709)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
02/10/2019
2
Exec Dt:
02/05/2019
Assignee
1
955 MASSACHUSETTS AVENUE
4TH FLOOR
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
16955205
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
BOSTON, MA 02110
Assignment: 14
Reel/Frame:053327/0430   Pages: 6
Recorded: 07/28/2020
Attorney Dkt #:394259-006USC1 (175376)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
02/10/2019
2
Exec Dt:
02/05/2019
Assignee
1
955 MASSACHUSETTS AVENUE
4TH FLOOR
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
16939723
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110
Assignment: 15
Reel/Frame:061275/0851   Pages: 5
Recorded: 09/30/2022
Attorney Dkt #:394259-006USC2 (189447)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
02/10/2019
2
Exec Dt:
02/05/2019
Assignee
1
61 NORTH BEACON STREET, 4TH FLOOR
BOSTON, MASSACHUSETTS 02134
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
17654722
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110
Assignment: 16
Reel/Frame:066263/0651   Pages: 5
Recorded: 01/26/2024
Attorney Dkt #:394259-006USC3 (204333)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
02/10/2019
2
Exec Dt:
02/05/2019
Assignee
1
61 NORTH BEACON STREET, 4TH FLOOR
BOSTON, MASSACHUSETTS 02134
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
18465823
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110
Assignment: 17
Reel/Frame:048482/0620   Pages: 4
Recorded: 03/01/2019
Attorney Dkt #:394259-008US (164950)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
Exec Dt:
02/12/2019
Assignee
1
955 MASSACHUSETTS AVENUE
4TH FLOOR
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
16215963
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110-2605
Assignment: 18
Reel/Frame:051229/0130   Pages: 4
Recorded: 12/09/2019
Attorney Dkt #:394259-008USC1 (171106)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
Exec Dt:
02/12/2019
Assignee
1
955 MASSACHUSETTS AVENUE
4TH FLOOR
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
16704302
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110-2605
Assignment: 19
Reel/Frame:061587/0430   Pages: 4
Recorded: 09/30/2022
Attorney Dkt #:394259-008USC2 (184090)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
Exec Dt:
02/12/2019
Assignee
1
61 NORTH BEACON STREET, 4TH FLOOR
BOSTON, MASSACHUSETTS 02134
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
17359391
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110
Assignment: 20
Reel/Frame:061702/0940   Pages: 5
Recorded: 10/18/2022
Attorney Dkt #:394259-008USC2 (184090)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
Exec Dt:
02/12/2019
Assignee
1
61 NORTH BEACON STREET, 4TH FLOOR
BOSTON, MASSACHUSETTS 02134
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
17359391
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110
Assignment: 21
Reel/Frame:052588/0492   Pages: 3
Recorded: 05/06/2020
Attorney Dkt #:394259-010US1 (173797)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
Exec Dt:
06/10/2019
Assignee
1
955 MASSACHUSETTS AVENUE
4TH FLOOR
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
16761848
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110-2605
Assignment: 22
Reel/Frame:052588/0310   Pages: 6
Recorded: 05/06/2020
Attorney Dkt #:394259-010US1 (173797)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
07/17/2019
2
Exec Dt:
03/21/2019
3
Exec Dt:
03/18/2019
Assignee
1
955 MASSACHUSETTS AVENUE
4TH FLOOR
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
16761848
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110-2605
Assignment: 23
Reel/Frame:051287/0708   Pages: 8
Recorded: 12/16/2019
Attorney Dkt #:2013591-0003, -0006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
Exec Dt:
12/10/2019
Assignee
1
955 MASSACHUSETTS AVENUE
CAMBRIDGE, MASSACHUSETTS 02139
Properties
 
Pat #
Pub #
Intl #
App #
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
16343297
 
16343311
Correspondence name and address
CHOATE HALL & STEWART LLP
TWO INTERNATIONAL PLACE
BOSTON, MA 02110
Assignment: 24
Reel/Frame:053988/0932   Pages: 7
Recorded: 10/06/2020
Attorney Dkt #:394259-012US1 (176244)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
06/06/2020
2
Exec Dt:
06/07/2020
3
Exec Dt:
09/09/2020
Assignee
1
955 MASSACHUSETTS AVENUE, 4TH FLOOR
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
17045697
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110-2605
Assignment: 25
Reel/Frame:060236/0074   Pages: 4
Recorded: 06/17/2022
Attorney Dkt #:394259-016WO (178006)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
Exec Dt:
12/10/2020
Assignee
1
61 NORTH BEACON STREET, 4TH FLOOR
BOSTON, MASSACHUSETTS 02134
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
17786912
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110
Assignment: 26
Reel/Frame:061057/0598   Pages: 8
Recorded: 09/12/2022
Attorney Dkt #:394259-017US (193294)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
Exec Dt:
06/17/2022
2
Exec Dt:
08/26/2022
Assignee
1
61 NORTH BEACON STREET, 4TH FLOOR
BOSTON, MASSACHUSETTS 02134
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
17941509
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110
Assignment: 27
Reel/Frame:063417/0679   Pages: 8
Recorded: 04/24/2023
Attorney Dkt #:394259-016US1 (192126)
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignor
1
Exec Dt:
06/17/2022
Assignee
1
61 NORTH BEACON STREET, 4TH FLOOR
BOSTON, MASSACHUSETTS 02134
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
17786912
Correspondence name and address
DECHERT LLP
ONE INTERNATIONAL PLACE, 40TH FLOOR
100 OLIVER STREET
BOSTON, MA 02110

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