Patent Assignment
Reel/Frame 021778/0319
Assignment of Assignor's Interest
Recorded: 2008-11-03
Pages: 6
Assignors
CHARI, RAVI V.J.
Executed: 2008-09-10
ZHAO, ROBERT
Executed: 2008-09-12
DENG, YONGHONG
Executed: 2008-09-15
LI, WEI
Executed: 2008-09-15
Assignee
IMMUNOGEN INC.
830 WINTER STREET, WALTHAM, MASSACHUSETTS, 02451
Covered Property
(1)
Cytotoxic Agents Comprising New Tomaymycin Derivatives
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Nov 3, 2008
From: GAUZY, LAURENCE; BOUCHARD, HERVE; COMMERCON, ALAIN
To: SANOFI-AVENTIS
Reel/Frame 021775/0396 →
Assignment of Assignor's Interest
Nov 3, 2008
From: IMMUNOGEN INC.
To: SANOFI-AVENTIS
Reel/Frame 021778/0325 →
Change of Name
Jun 20, 2012
From: SANOFI-AVENTIS
To: SANOFI
Reel/Frame 028413/0927 →