skip navigationU S P T O SealUnited States Patent and Trademark Office AOTW logo
Home|Site Index|Search|Guides|Contacts|eBusiness|eBiz alerts|News|Help
Assignments on the Web > Patent Query
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 : PEARSALL, ROBERT S.
Total Assignments: 11
Assignment: 1
Reel/Frame:020522/0453   Pages: 5
Recorded: 02/18/2008
Attorney Dkt #:A0904.70000US01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GRINBERG, ASYA
Exec Dt:
12/20/2007
2
KNOPF, JOHN
Exec Dt:
01/02/2008
3
PEARSALL, ROBERT S.
Exec Dt:
12/20/2007
4
KUMAR, RAVINDRA
Exec Dt:
01/02/2008
5
SEEHRA, JASBIR
Exec Dt:
01/02/2008
Assignee
1
ACCELERON PHARMA, INC.
149 SIDNEY STREET
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8455428
US20080175844
11982738
Correspondence name and address
PATRICIA GRANAHAN
600 ATLANTIC AVENUE
BOSTON, MA 02210
Assignment: 2
Reel/Frame:023130/0672   Pages: 12
Recorded: 08/21/2009
Attorney Dkt #:A0904.70003US01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GRINBERG, ASYA
Exec Dt:
06/12/2009
2
KNOPF, JOHN
Exec Dt:
06/11/2009
3
KUMAR, RAVINDRA
Exec Dt:
06/09/2009
4
PEARSALL, ROBERT S.
Exec Dt:
06/12/2009
5
SEEHRA, JASBIR
Exec Dt:
06/11/2009
Assignee
1
ACCELERON PHARMA, INC.
128 SIDNEY STREET
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8158584
US20090311272
12434598
Correspondence name and address
WOLF GREENFIELD & SACKS, P.C.
600 ATLANTIC AVENUE
BOSTON, MA 02210
Assignment: 3
Reel/Frame:029425/0269   Pages: 12
Recorded: 12/07/2012
Attorney Dkt #:A0904.70003US02
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GRINBERG, ASYA
Exec Dt:
06/12/2009
2
KNOPF, JOHN
Exec Dt:
06/11/2009
3
KUMAR, RAVINDRA
Exec Dt:
06/09/2009
4
PEARSALL, ROBERT S.
Exec Dt:
06/12/2009
5
SEEHRA, JASBIR
Exec Dt:
06/11/2009
Assignee
1
ACCELERON PHARMA, INC.
128 SIDNEY STREET
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20130039910
13447077
Correspondence name and address
ROQUE EL-HAYEK
600 ATLANTIC AVE
WOLF GREENFIELD
BOSTON, MA 02210
Assignment: 4
Reel/Frame:031289/0587   Pages: 12
Recorded: 09/26/2013
Attorney Dkt #:A0904.70008US00
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GRINBERG, ASYA
Exec Dt:
06/12/2009
2
KNOPF, JOHN
Exec Dt:
06/11/2009
3
KUMAR, RAVINDRA
Exec Dt:
06/09/2009
4
PEARSALL, ROBERT S.
Exec Dt:
06/12/2009
5
SEEHRA, JASBIR
Exec Dt:
06/11/2009
Assignee
1
ACCELERON PHARMA, INC.
128 SIDNEY STREET
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10059756
US20130040896
13447091
Correspondence name and address
ROQUE EL-HAYEK
600 ATLANTIC AVE
WOLF GREENFIELD
BOSTON, MA 02210
Assignment: 5
Reel/Frame:047107/0061   Pages: 12
Recorded: 10/09/2018
Attorney Dkt #:A0904.70008US01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GRINBERG, ASYA
Exec Dt:
06/12/2009
2
KNOPF, JOHN
Exec Dt:
06/11/2009
3
KUMAR, RAVINDRA
Exec Dt:
06/09/2009
4
PEARSALL, ROBERT S.
Exec Dt:
06/12/2009
5
SEEHRA, JASBIR
Exec Dt:
06/11/2009
Assignee
1
ACCELERON PHARMA, INC.
128 SIDNEY STREET
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20190048063
16049600
Correspondence name and address
ROQUE EL-HAYEK
WOLF, GREENFIELD & SACKS, P.C.
600 ATLANTIC AVENUE
BOSTON, MA 02210
Assignment: 6
Reel/Frame:048280/0245   Pages: 12
Recorded: 02/08/2019
Attorney Dkt #:A0904.70003US03
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GRINBERG, ASYA
Exec Dt:
06/12/2009
2
KNOPF, JOHN
Exec Dt:
06/11/2009
3
KUMAR, RAVINDRA
Exec Dt:
06/09/2009
4
PEARSALL, ROBERT S.
Exec Dt:
06/12/2009
5
SEEHRA, JASBIR
Exec Dt:
06/11/2009
Assignee
1
ACCELERON PHARMA, INC.
128 SIDNEY STREET
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20180179293
15895894
Correspondence name and address
ROQUE EL-HAYEK
WOLF, GREENFIELD & SACKS, P.C.
600 ATLANTIC AVENUE
BOSTON, MA 02210
Assignment: 7
Reel/Frame:055810/0178   Pages: 12
Recorded: 04/02/2021
Attorney Dkt #:A0904.70003US04
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GRINBERG, ASYA
Exec Dt:
06/12/2009
2
KNOPF, JOHN
Exec Dt:
06/11/2009
3
KUMAR, RAVINDRA
Exec Dt:
06/09/2009
4
PEARSALL, ROBERT S.
Exec Dt:
06/12/2009
5
SEEHRA, JASBIR
Exec Dt:
06/11/2009
Assignee
1
ACCELERON PHARMA, INC.
128 SIDNEY STREET
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20210388104
17140398
Correspondence name and address
LINGYIN GE
600 ATLANTIC AVENUE
WOLF GREENFIELD & SACKS, P.C.
BOSTON, MA 02210
Assignment: 8
Reel/Frame:056381/0755   Pages: 12
Recorded: 05/28/2021
Attorney Dkt #:A0904.70008US02
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GRINBERG, ASYA
Exec Dt:
06/12/2009
2
KNOPF, JOHN
Exec Dt:
06/11/2009
3
KUMAR, RAVINDRA
Exec Dt:
06/09/2009
4
PEARSALL, ROBERT S.
Exec Dt:
06/12/2009
5
SEEHRA, JASBIR
Exec Dt:
06/11/2009
Assignee
1
ACCELERON PHARMA, INC.
128 SIDNEY STREET
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20220017600
17184692
Correspondence name and address
LINGYIN GE
WOLF GREENFIELD & SACKS, P.C.
600 ATLANTIC AVENUE
BOSTON, MA 02210-2211
Assignment: 9
Reel/Frame:023025/0682   Pages: 12
Recorded: 07/30/2009
Attorney Dkt #:A0904.70002US01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SEEHRA, JASBIR
Exec Dt:
07/17/2009
2
KNOPF, JOHN
Exec Dt:
07/21/2009
3
PEARSALL, ROBERT S.
Exec Dt:
07/22/2009
4
GRINBERG, ASYA
Exec Dt:
07/21/2009
5
KUMAR, RAVINDRA
Exec Dt:
07/22/2009
Assignee
1
ACCELERON PHARMA, INC.
128 SIDNEY STREET
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8642031
US20090304691
12467170
Correspondence name and address
ROQUE EL-HAYEK
600 ATLANTIC AVENUE
WOLF GREENFIELD & SACKS P.C.
BOSTON, MA 02210-2206
Assignment: 10
Reel/Frame:039862/0027   Pages: 12
Recorded: 09/27/2016
Attorney Dkt #:A0904.70002US03
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SEEHRA, JASBIR
Exec Dt:
07/17/2009
2
KNOPF, JOHN
Exec Dt:
07/21/2009
3
PEARSALL, ROBERT S.
Exec Dt:
07/22/2009
4
GRINBERG, ASYA
Exec Dt:
07/21/2009
5
KUMAR, RAVINDRA
Exec Dt:
07/22/2009
Assignee
1
ACCELERON PHARMA, INC.
128 SIDNEY ST.
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20170137503
15245838
Correspondence name and address
ROQUE EL-HAYEK
600 ATLANTIC AVE
WOLF GREENFIELD
BOSTON, MA 02210
Assignment: 11
Reel/Frame:031853/0559   Pages: 10
Recorded: 12/27/2013
Attorney Dkt #:A0904.70007US01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KNOPF, JOHN
Exec Dt:
12/06/2013
2
KUMAR, RAVINDRA
Exec Dt:
12/13/2013
3
PEARSALL, ROBERT S.
Exec Dt:
12/18/2013
4
SHERMAN, MATTHEW L.
Exec Dt:
12/03/2013
Assignee
1
ACCELERON PHARMA, INC.
128 SIDNEY STREET
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20140193425
14046195
Correspondence name and address
O. TOBIAS BRAMBRINK
600 ATLANTIC AVE
WOLF GREENFIELD
BOSTON, MA 02210

Search Results as of: 09/25/2024 01:17 PM
If you have any comments or questions concerning the data displayed, contact PRD / Assignments at 571-272-3350. v.2.6
Web interface last modified: August 25, 2017 v.2.6
| .HOME | INDEX| SEARCH | eBUSINESS | CONTACT US | PRIVACY STATEMENT