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Patent Assignment Assignor Details
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Assignor Name : STEEVES, RITA
Total Assignments: 11
Assignment: 1
Reel/Frame:015911/0936   Pages: 2
Recorded: 10/08/2004
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
STEEVES, RITA
Exec Dt:
10/07/2004
2
LUTZ, ROBERT
Exec Dt:
10/07/2004
3
CHARI, RAVI
Exec Dt:
10/07/2004
4
XIE, HONGSHENG
Exec Dt:
10/08/2004
5
KOVTUN, YELENA
Exec Dt:
10/07/2004
Assignee
1
IMMUNOGEN, INC.
128 SIDNEY STREET
CAMBRIDGE, MASSACHUSETTS 02139-4239
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8088387
US20050169933
10960602
Correspondence name and address
SUGHRUE MION, PLLC
2100 PENNSYLVANIA AVENUE, N.W.
SUITE 800
WASHINGTON, DC 20037
Assignment: 2
Reel/Frame:017371/0843   Pages: 3
Recorded: 03/23/2006
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LUTZ, ROBERT
Exec Dt:
02/01/2006
2
STEEVES, RITA
Exec Dt:
02/01/2006
3
AMPHLETT, GODFREY
Exec Dt:
02/01/2006
Assignee
1
IMMUNOGEN, INC.
128 SIDNEY STREET
CAMBRIDGE, MASSACHUSETTS 02139-4239
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8603483
US20060127407
11290249
Correspondence name and address
PHILIP S. JOHNSON, ESQ.
CHIEF PATENT COUNSEL
JOHNSON & JOHNSON
ONE JOHNSON & JOHNSON PLAZA
NEW BRUNSWICK, NJ 08933-7033
Assignment: 3
Reel/Frame:017792/0373   Pages: 2
Recorded: 04/14/2006
Attorney Dkt #:A8861
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GOLDMAKHER, VIKTOR S.
Exec Dt:
04/14/2006
2
LUTZ, ROBERT J.
Exec Dt:
04/14/2006
3
CHARI, RAVI V.J.
Exec Dt:
04/14/2006
4
KOVTUN, YELENA V.
Exec Dt:
04/14/2006
5
LAMBERT, JOHN M.
Exec Dt:
04/14/2006
6
STEEVES, RITA
Exec Dt:
04/14/2006
7
ERICKSON, HANS K.
Exec Dt:
04/14/2006
Assignee
1
IMMUNOGEN INC.
128 SIDNEY STREET
CAMBRIDGE, MASSACHUSETTS 02139-4239
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20060233814
11404001
Correspondence name and address
SUGHRUE MION, PLLC
2100 PENNSYLVANIA AVENUE, N.W.
SUITE 800
WASHINGTON, DC 20037
Assignment: 4
Reel/Frame:034223/0399   Pages: 7
Recorded: 11/20/2014
Attorney Dkt #:PHPH-071-101
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KUMAR, RAVINDRA
Exec Dt:
11/12/2014
2
GRINBERG, ASYA
Exec Dt:
11/07/2014
3
SAKO, DIANNE S.
Exec Dt:
10/16/2014
4
CASTONGUAY, ROSELYNE
Exec Dt:
10/17/2014
5
STEEVES, RITA
Exec Dt:
10/16/2014
Assignee
1
ACCELERON PHARMA, INC.
128 SIDNEY STREET
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20150056199
14465182
Correspondence name and address
ROPES & GRAY LLP
800 BOYLSTON STREET
PRUDENTIAL TOWER
BOSTON, MA 02199-3600
Assignment: 5
Reel/Frame:038278/0674   Pages: 7
Recorded: 04/14/2016
Attorney Dkt #:PHPH-071-102
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KUMAR, RAVINDRA
Exec Dt:
11/12/2014
2
GRINBERG, ASYA
Exec Dt:
11/07/2014
3
SAKO, DIANNE S.
Exec Dt:
10/16/2014
4
CASTONGUAY, ROSELYNE
Exec Dt:
10/17/2014
5
STEEVES, RITA
Exec Dt:
10/16/2014
Assignee
1
ACCELERON PHARMA INC.
128 SIDNEY STREET
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9809637
US20160376341
15044883
Correspondence name and address
ROPES & GRAY LLP
PRUDENTIAL TOWER-800 BOYLSTON STREET
IPRM DOCKETING- 43RD FLOOR
BOSTON, MA 02199
Assignment: 6
Reel/Frame:045374/0737   Pages: 7
Recorded: 03/28/2018
Attorney Dkt #:1848179-0002-071-103
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KUMAR, RAVINDRA
Exec Dt:
11/12/2014
2
GRINBERG, ASYA
Exec Dt:
11/07/2014
3
SAKO, DIANNE S.
Exec Dt:
10/16/2014
4
CASTONGUAY, ROSELYNE
Exec Dt:
10/17/2014
5
STEEVES, RITA
Exec Dt:
10/16/2014
Assignee
1
ACCELERON PHARMA INC.
128 SIDNEY STREET
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10316076
US20180179261
15714015
Correspondence name and address
WHITE & CASE LLP
75 STATE STREET
BOSTON, MA 02109
Assignment: 7
Reel/Frame:049422/0135   Pages: 7
Recorded: 06/10/2019
Attorney Dkt #:1848179-0002-071-104
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KUMAR, RAVINDRA
Exec Dt:
11/12/2014
2
GRINBERG, ASYA
Exec Dt:
11/07/2014
3
SAKO, DIANNE S.
Exec Dt:
10/16/2014
4
CASTONGUAY, ROSELYNE
Exec Dt:
10/17/2014
5
STEEVES, RITA
Exec Dt:
10/16/2014
Assignee
1
ACCELERON PHARMA INC.
128 SIDNEY STREET
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10981973
US20190284257
16393277
Correspondence name and address
WHITE & CASE LLP
75 STATE STREET
BOSTON, MA 02109
Assignment: 8
Reel/Frame:052062/0869   Pages: 7
Recorded: 03/10/2020
Attorney Dkt #:1848179-0002-071-105
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KUMAR, RAVINDRA
Exec Dt:
11/12/2014
2
GRINBERG, ASYA
Exec Dt:
11/07/2014
3
SAKO, DIANNE S.
Exec Dt:
10/16/2014
4
CASTONGUAY, ROSELYNE
Exec Dt:
10/17/2014
5
STEEVES, RITA
Exec Dt:
10/16/2014
Assignee
1
ACCELERON PHARMA INC.
128 SIDNEY STREET
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11008377
NONE
16777546
Correspondence name and address
WHITE & CASE LLP
75 STATE STREET
BOSTON, MA 02109
Assignment: 9
Reel/Frame:057993/0956   Pages: 7
Recorded: 11/02/2021
Attorney Dkt #:1848179-0002-071-106
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
KUMAR, RAVINDRA
Exec Dt:
11/12/2014
2
GRINBERG, ASYA
Exec Dt:
11/07/2014
3
SAKO, DIANNE S.
Exec Dt:
10/16/2014
4
CASTONGUAY, ROSELYNE
Exec Dt:
10/17/2014
5
STEEVES, RITA
Exec Dt:
10/16/2014
Assignee
1
ACCELERON PHARMA INC.
128 SIDNEY STREET
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
NONE
US20210230252
17229132
Correspondence name and address
WHITE & CASE LLP
75 STATE STREET
BOSTON, MA 02109
Assignment: 10
Reel/Frame:041747/0761   Pages: 5
Recorded: 03/27/2017
Attorney Dkt #:043214-079972-US
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GRINBERG, ASYA
Exec Dt:
03/27/2015
2
SAKO, DIANNE S.
Exec Dt:
03/20/2015
3
CASTONGUAY, ROSELYNE
Exec Dt:
05/15/2015
4
STEEVES, RITA
Exec Dt:
05/15/2015
5
KUMAR, RAVINDRA
Exec Dt:
12/22/2014
Assignee
1
ACCELERON PHARMA INC.
128 SIDNEY ST.
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
10682392
US20160287664
15037852
Correspondence name and address
DAVID S. RESNICK
NIXON PEABODY
100 SUMMER STREET
BOSTON, MA 02110-2131
Assignment: 11
Reel/Frame:052428/0004   Pages: 5
Recorded: 04/17/2020
Attorney Dkt #:043214-079972USC1
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
GRINBERG, ASYA
Exec Dt:
03/27/2015
2
SAKO, DIANNE S.
Exec Dt:
03/20/2015
3
CASTONGUAY, ROSELYNE
Exec Dt:
05/15/2015
4
STEEVES, RITA
Exec Dt:
05/15/2015
5
KUMAR, RAVINDRA
Exec Dt:
12/22/2014
Assignee
1
ACCELERON PHARMA INC.
128 SIDNEY ST.
CAMBRIDGE, MASSACHUSETTS 02139
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
11951156
US20200323955
16851287
Correspondence name and address
DAVID S. RESNICK NIXON PEABODY LLP
EXCHANGE PLACE, 53 STATE STREET
BOSTON, MA 02109

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