IP Library Assignment 031738/0175
Patent Assignment
Reel/Frame 031738/0175

Assignment of Assignor's Interest

Recorded: 2013-12-09 Pages: 3
Assignors
CHARI, RAVI V.J.
Executed: 2013-09-27
WIDDISON, WAYNE C.
Executed: 2013-10-03
WILHELM, SHARON D.
Executed: 2013-09-27
Assignee
IMMUNOGEN, INC.
830 WINTER STREET, WALTHAM, MASSACHUSETTS, 02451
Covered Property (1)
Cytotoxic Agents Comprising New Ansamitocin Derivatives
Patent: 9,090,629 →
Application: 13/883,344 →
Publication: US 2013/0323268